Tony Jaa's post Ong Bak work was disappointing. There are some great fights, for sure, including one extraordinary single shot (around 5 minutes, no cuts) where he takes out dozens of guys, plus a fine capoeira vs. muay thai fight. And who can fault fights with big time wrestlers and a domintrix with a whip? Sadly, this film is painfully encumbered by too much plot that makes no sense. It's very uneven, not at all up to par with Jaa's last film. But definitely check it out for the fights - just speed to the fights and skip the rest.
The next Tony Jaa release that I've heard on the horizon is Spirited Killer, allegedly going to be released for the US market in the next month or two. Jaa was part of a stunt team under Panna Rittikrai, and they made several films which are only available on Thai VCD at this point. The US Spirited Killer is supposed to have all sorts of bonus tracks featuring a lot of old interviews and footage.