Here's an interesting little sub-series of another future tangent Archieverse (published well before ARCHIE 3000!)...

Future School Daze    Riverdale 2001 / 5 pages     Laugh Comics (1946 series) #328    July 1978
(In the era of video-teleconferencing, it's much harder to pretend to be sick.)

A Little Seedy    Riverdale 2001 / 5 pages     Archie's Pals 'n' Gals (1952 series) #125    August 1978
(Archie's flying car keeps messing up Mr. Lodge's newly seeded lawn.)

Mind Boggling    Riverdale 2001 / 5 pages     Laugh Comics (1946 series) #329    August 1978
(In the Riverdale High of 2001, even with futuristic inventions like the Mind Programmer, it's a struggle to get the students to learn anything.)

A Knockout    Riverdale 2001 / 5 pages     Pep (1960 series) #340        August 1978
(Set in the future, Veronica invites Archie over to try her new automated meal preparation device.)

Pushy        Riverdale 2001 / 4 pages     Laugh Comics (1946 series) #334    January 1979
(Archie has trouble with his space wagon.)

Spaced Out    Riverdale 2001 / 4 pages     Archie Comics Digest (1973 series) #86    October 1987
(Reggie borrows Dilton's robot so he can date Midge.)

Couldn't find out much info about these stories, apart from titles and issue appearances. Anyone familiar with these? There are perhaps more of these than I found listed on GCD, as there are many issues from 1978-1979 that remain un-indexed (although "Future School Daze" does appear to be the first of these, and the last one listed "Spaced Out" would presumably be a reprint).

In what cannot possibly be a coincidence, I found this contest announced in an Archie Club News page from early in 1979... shortly after the "Riverdale 2001" series of stories had begun to appear in 1978. They appear to be fishing for ideas here to fuel future installments of this little sub-series.