Although you make some good points the fact is Van Dammes career is no better now than it was before EX2 and neither is Dolphs
The fact is since 2002 both Seagal and Van Dammes careers have been pretty much identical with both appearing in a number of poor STV action films with the odd good one sprinkling here and there
DTV movies aside...
Van Damme starred as "himself" in a critically acclaimed indie film that garnered him some great accolades for his acting.
He starred in an award winning commercial for Volvo that went viral and has now well over 100 million views online.
He starred as the main bad guy in Expendables 2, a movie that went on to gross over $300M worldwide.
He starred in a TV pilot for Amazon Executive Produced by Ridley Scott.
What has Seagal done in the last 15 years that would even come close to that? He had a reality show on A&E and he had a supporting role in Machete. I'd say those are the most "mainstream" things he's done since Exit Wounds.
I'm not trying to make this a p***ing contest, but it's clear that Van Damme's career is in a much better place than Seagal's.
I don't think there's any question that the Expendables movies were very good for both Van Damme and Lundgren. I believe had Seagal agreed to do one, it would have been beneficial for his career as well.