There's going to be an alternate ending to tonight's episode of 'Veronica Mars' available on AOL.com immediately following the show's broadcast on UPN. In a way, it's similar to last week's episode of 'CSI: Miami' which had an extended ending scene show up at the CBS.com site.
But this won't qualify for Crossover of the Week honors next week, because it's more of a showcase for one of the many alternate dimensions in the TV Universe. Depending on what happens in the online version of the ending, it could fit in nicely over in the evil mirror dimension.
The alternate ending, and the actual ending will both be available online for one week, where viewers can vote on which ending they liked best.