I'm sure a consummate professional like Kevin Conroy wouldn't accidentally name drop the next big DC animated feature. This has to be legit and is probably WB's early way of seeding interest.
But yeah, Flashpoint makes total sense to adapt. Everything you needed to know about The Flash and the story was included in the main mini - there's possibly even room to touch on some bits from the tie-ins, such as the Aquaman/Wonder Woman war.
And despite the movies not having any continuity between them, DC could use this chance to re-boot the characters in their new costumes, for overall brand consistency.
Note to self: No More Heroes avatar in use since April 10/2009. Previous avatar lasted 2 years, 9 months and 4 days!!! Holy Stale Avatar Batman!!