Let assume he would get same age like his brother Rod O. Disney (78 years)
means we get 16 more years until his death in 1979.
i think we get similar Disney Productions in 1970s as in OTL, but with some difference
Animation:
Disney will produce more Animation films, but he decide what goes into Production and give his personal touch to it.
so it more likely that Robin Hood (1973) is under Disney Reynard the Fox fable instead.
while The Many Adventures of Winnie the Pooh (1977) remains true to the source material.
can be that The Rescuers (1977) remain a proposal and Disney goes for another idea.
Theme parks:
During 1966 he work on new Theme parks called Disney World and EPCOT
EPCOT stand for
Experimental
Prototype
City (and Community) of
Tomorrow
Here Walt Disney him self about this EPCOT project on Youtube
Original a small City with a sounding Community for the guest of Disney World, were living 10 years in the future.
the place had feature like Video phones, early computer system in apartment and homes, advance traffic system
in other words 2001: a Space Odyssey real on ground.
After Disney's death the experiment was Stop and in 1982 a new theme park got the name EPCOT
Had Disney realized this vision, he could have alterer the USA, because the Guest would have order some technology for there home.
Disney and FBI
yes Disney work close with FBI in order fight "Communist" forces inside Disney Productions.
and he will do also during 1968 and early 1970s even cooperate with FBI CONTELPRO program,
a highly illegal wiretapping, eavesdropping, menace and Career Limiting Move against everyone in Civil right Movement, artist, Authors, actors and leftist politician.
CONTElPRO was stopped after the death of FBI boss J.E. Hoover and program exposure in US media leading to huge scandal
Disney role could also be exposed in US Media in that case has Disney Productions a serious image problem