1) probably a oneshot; Tony is kidnapped and the team manage to locate him. There is a plan to infiltrate and extract, but then Clint calls in that the arc reactor was being used to power the bad guy's base. The Avengers haul ass to get the arc reactor back in Tony.
2) FOUND! Steve tries to locate Captain America cards to autograph for Coulson but can't get them. Instead he paints them--not sure if he painted all or just the missing ones. ETA:
3) Somewhen in the future, the Transformers use the Allspark to give JARVIS consciousness; he uses the Iron Man armor as his body... something to do with a promise made to Tony before he died? ETA: definitely Optimus Prime was explaining things to JARVIS. Probably written post IM1 or IM2...
Many, many thanks!