Some slightly 4th-esque things I experimented with, long before
4e itself came out. . . (note however that I had a lot of
other house rules that were totally *un*-'4th-like')
* 'Minion' template: minimum HP, a couple of other things
* 'Elite' template: maximum HP, a couple of other things
* More starting HP: Con score, not Con mod, at 1st level
* 'Rituals':
Incantations, house ruled to suit
* More feats: even more than
4e, mind you (one per level. . . nearly)
* No gnomes, no matter the setting
* Skill challenges: complex skill checks, a few other things - remarkably similar, all in all
* Flight, teleportation, most divination, resurrection, etc. all less casual, accessible
* (More or less) points 3, 4 and 5 on Greg K's list: M&M Hero Points, slightly modified and relabelled; not *exactly* unified saves, but a hell of a lot less out of whack and 'bumpy'; and yeah, that (other than using weapon groups on top of that). . . respectively
Going through my house rules now. . . to see if anything else turns up that even
whispers '
4e' in the slightest. . .