According to his official site and htose who have contacted him, he's fairly sure hes gonna quit the business having been burnt by it too often. Gary was evidently not happy with Retrograde or Submerged because he wax initially promised the lead bad guy roles in both but had his role changed pretty late on.
What could be his last film is Reptilicant that looks cheaper than a Cormon movie, and again something he;'s probably not proud of. Heres the official site and trialer but it does look pretty bad.
It's sad really cause he's never had a good break. He's not a great actor but as a martial arts performer, few are better. Some of Gary's older movies a good standard martial arts flicks. Check Cold Harvest, Bloodmoon, White Tiger, Riot, Recoil and also he had a good fight with Don Wilson in Bloodfist 4. He's perhaps best known for Fist Of The Northstar which was poorly handled to say the least, and Jackie Chan's City Hunter.
I've always been a fan of Gary's and he's deserved more than he's got in his career. He was approached earlyin the pre-production for Batman Forever, to play Robin when they were looking for a martial artist. They virtually promised him the role and then back out when he return from shooting another film called Spoiler. I think Gary's just been unlucky having worked with a lot of producers who don't care about their actors.