I wouldn't compare him to Danault. And he resembles Howden in no way that I can think of. I don't think of him as a two way center. I know he's trying to work on that, and he's trying to project that image, but it has neither historically been the case nor is it the case this year. Even, as I understand his defensive game held him back from getting time in the SHL for much of the year. Before he got benched and then came back at the end of the season, they were running him in a set up where he'd play on the 4th line, sometimes the 3rd line, but always played the PP (an of course, never on the PK).
Kasper is actually kinda big. He does not play big at all. He doesn't really protect the puck with his body, almost ever that I can recall, he's almost entirely finesse. He attempts hits from time to time but it would be inaccurate to call him a physical player. He grew to 6'1" rather recently, he still plays in many ways like he did when he was 5'10" 150 pounds. He also isn't generally known for his shot, despite a couple good blasts. These are just the things he is not good at right now. They're liable to change, I certainly hope they do change, but talking about his game right now.
So what is he? He's extremely dynamic with the puck. And he's a pest. In his own end less so, as has been noted, but whenever the play is moving down the ice he is buzzing everywhere. If you like Corsi, you will like Kasper, because he does great at that thing. The player he reminds me of the most stylistically, at least recently, is Brandon Hagel, but bigger and maybe a bit faster.
We'll see how much his game develops, and as he develops, how much the other aspects of his game develop. His puck protection skills, his physicality and battle winning skills, his shot. If he could improve those a lot, then obviously the ceiling is even higher.