Update: There's a movie of the bikes and plane stuff on Criterion's site.
Criterion is to release bikes into Burnout Paradise in its forthcoming Davis patch, scheduled for late July. The developer also showed off a plan flying around Paradise city this afternoon in its live podcast, which "might" make it into the game this year.
The chatty developers revealed that the "Cagney" update will be with us in late June, too.
Inside this will be roughly 35 fixes asked for by the community, as well as a Hunter Olympus SUV and some sort of fancy online calendar to keep you updated with all the online events.
These events should be happening every weekend, and some server-side wizardry means the team can change things with no more than a day's notice. The team has plans to dish out unique car-prizes to people sending in very funny emails or winning competitions. And these vehicles will promote plenty of jealousy, apparently.
Criterion said "Cagney" would add around 70 FreeBurn challenges to the mix, and generally be a "massive" update in every way.
More info through the link. Criterion: the developer that just keeps on giving.