That's a pretty superficial way of improving a character. I mean, change his gimmick, and what really changes besides the gimmick? He's still the same person. Plus, switching to death traps is such a massive change that you might as well use a different character (like Arcade, who's gimmick is already deathtraps). Really, if you want to change The Trapster's gimmick, have it be a logical extension of his current gimmick: Expand the adhesive angle to make him an expert on chemical weapons in general. Have him use a combination of adhesives, acids, and explosives to do whatever he's trying to do. And simultaneously work on his personality. I mean, he's tougher in a fight now. Huzzah. But unless you take at least a little time to explain who he is and how he thinks, nothing's really improved. He's just as bland a character as he was before, except now lacking the novelty value of being kind of pathetic.