I don't know... I don't think I like the guy playing Riggs and seeing Damon Wayans trying to play Danny Glover without saying "I'm too old for this shit" just feels wrong.
Lucifer's decent if only because of the actor they have playing Lucifer. If there was someone less funny and smarmy in the role, it would probably be complete ass.
Poor casting for Riggs and Murtaugh, but otherwise it didn't look too bad (and I was a huge fan of the Lethal Weapon franchise). Damon Wayans in particular was a poor choice.