Stony Au

[aisho-ren.livejournal.com]

1. Tony is the reincarnation of his uncle who was Steve's lover during WWII. It might have been on FF.net

2. Anything where Tony was alive during the war, time traveled etc. Basically anything with Steve and Tony meeting in the past.

Comments

[nwhepcat.livejournal.com]

There's one where Tony time travels and pretends to be Howard's brother, so he's not a reincarnation but "is" the uncle. The Twice-Told Tale, by arysteia, here: http://archiveofourown.org/works/411599
Also beautifully read by liannabob, here: http://www.audiofic.jinjurly.com/twice-told-tale

[http://users.livejournal.com/_cadenza/]

Zekkas has a great time-travel fic with Steve and Tony. i'll reject your reality and go home to my own (but not without fixing a few things first) (http://archiveofourown.org/works/530888?view_full_work=true)

[whizzy.livejournal.com]

Ah, I did one of those. The Devil's Music (https://archiveofourown.org/works/834984).

[ladyelektra.livejournal.com]

The reincarnation one you're looking for sounds like it might be Remember Me (http://archiveofourown.org/works/689189).

[aisho-ren.livejournal.com]

Yep that's it. I actually had it bookmarked and forgot. Opps. So many awesome fics bookmarked but I never have time to re-read anything.

[xfrozenx207.livejournal.com]

(For your second request, in case you're still interested)
Tony alive during war period:
http://archiveofourown.org/works/161082

Loki-induced time travel:
http://archiveofourown.org/works/739949

Time travel (from Steve's POV):
http://archiveofourown.org/works/670277