Will The Undertaker Be Forgotten in 10-20 Years?

I've been thinking, and excluding the old school fans (so only the new fans since 07)

Will the Undertaker be somewhat forgotten in 20 years/other amount of time?
I was thinking and it occurred to me this is possible.
Say he retires in 3 years, and 20 years after that, only we, the awesome people, will remember and reminisce about the great things he did and how he was the main part of WWE for a lot of us. (Like, if he retired i'd stop watching WWE and just contribute to forums/YA).
Think of alot of the good things that have come, and in today, aren't so popular (here's a few that were the best of the best in the day, aparently):
M*A*S*H
Cheers
Seinfeld
Frasier

Those are like old school shows, and in today's generation, are somewhat forgotten due to new shows taking the spotlight.
In WWE terms, Undertaker will be somewhat forgotten due to all the new and good talent coming up.
I for one DO NOT want The Undertaker to be forgotten, but sadly with Kids, they won't know how things go about. All they know of is this current Taker.
Kids don't know about his feuds in 94, original HBK feuds, casket matches, kane story, his styles of Taker (Old Western, Hybrid, LoD, MoD,ABA) and a lot of kids don't know Taker is like the only WWE current star that could fight well in real life.
They just know he's a big tall guy with scary powers and they don't know what he's contributed to this business.
Think about this:
Kids scarcely know about taker.
10 Years, he'll be retired, kids think "man another old guy from wrestling gone"
20 years, some may have done research, others just don't care. "oh yeah i remember Undertaker.. he was champ and i only saw 2 of his (??) Wrestle Mania matches cos i watched the AWESOME pg era, he was just a guy from wwe who just stayed there for money and contributed nothing in return"

Despite all the great things he's done, some of that isn't remembered much.
We still get old school questions about classic WWE, but if you were to say to somebody in the 80's wrestling era (when it was an unbelievable thing and could never die) saying "in 20 years, this will be a dead subject and people will rarely talk about it" you'd be called retarded.
It still sometimes mentioned, but do you think that the 80s fans thought it would be like 1 80s question per 5 pages of YA wrestling section?

What if in 20 years, the same becomes of The Undertaker.
I may have gotten some of you thinking.
Undertaker has done the greatest things in WWE. He owns the Casket, Buried Alive, HIAC. He has had the greatest feuds, and most interesting/confusing with some of the most unlikely (Yokozuna/Vince). But as of now, he isn't used to the best of his potential (due to injury and other reasons). If he can't do something memorable in his last run then my question will be true.
Hogan slammed Andre.
What will The Undertaker's equivalent to this be? Will it be something as bad (to the fans) as losing his streak, or going 20-0, or something where we'd feign how great it was like Taker hogging spotlight in the last run, Rumble Win, Mania win, and just plain dominance, or something that just leaves you in amazement, possibly a match or single moment.

Taker kicking out of 3-4+ Attitude Adjustments from CENA and still winning the match after 2 tombstone failures, a last ride, chokeslam(x2) old school and a Tombstone to win? Maybe he'll throw Cena off a cell (the kids won't forget cena possibly "dying").

But after ALL i've said there, I think i've backed up a sad and unfortunate point.
I'll get a lot of people saying "no he won't be forgotten" and I agree. But to the Kids, who Vince is targeting currently, he'll be forgotten, they have no idea how good it was.
Kids have no clue really what Lord of Darkness, Ministry, It Doesn't Matter, Bottom Line, Have a nice Day, If ya Smell, Hell Yeah, What, Gold Medalist, Viva La Raza or any of that legendary stuff means. If you go to a huge child cena fan, talking wrestling and they say:
"I wonder why people boo cena" and you cut him off saying "It doesn't matter WHY! Because he is, and always will be, a wannabee, 5 moved, square headed, lame gimmicked, superman steroid taking piece of CRAP!" he will have no idea what the "it doesn't matter" means. He thinks you're just being a loser.
Since kids think that, and the undertaker is just another wrestler, then could he very well be forgotten?
So many people won't be forgotten because of what they've done.
Hogan-Slammed Andre, wrestling at the age of 127, returned 22 times
Andre-slammed by hogan, eighth wonder of the world *ft Chyna*, immovable object
Cena-Hated by many, loved by many, Pioneer of the PG Era
Undertaker *to true fans*-Everything he has done, is doing and will be doing.

This is my opinion:
Only the real fans who truly respect WWE and actually care whether WWE goes PG, MA, Hires/Fires main eventers, cause of death of (???), and can still respect people if they hate them in wwe OR.. cares (a lot) about WHO is
2 minutes ago - 4 days left to answer.

(i somehow managed to use all the characters available in a question)

This is my opinion:
Only the real fans who truly respect WWE and actually care whether WWE goes PG, MA, Hires/Fires main eventers, cause of death of (???), and can still respect people if they hate them in wwe OR.. cares (a lot) about WHO is or who isn't in the main event.

The Undertaker will be remembered by the true fans, 18-30+. NOT KIDS!