Hehe, someone mention me? Those are mostly new to me. Though, those black ones at the bottom - are there two plugged together? - they might be off of Landcross. That piece to the right has two holes in the top, and one on either side, right, along with where that other gun is right now? Landcross' members could combine their guns to form the gestalt weapon, and that looks like the core piece and one other bit. I've truly got no idea on the other stuff. I don't recognise it from anything that's crossed my path.
Your right about that Landcross piece. How could I have missed that? I figured some of this parts maybe Brave but I'm not sure.
The trident looking thing is off an SD Gundam robot model Quite a few came with that...possibly the same kit that the blue model piece is off of.... The silver piece is off one of the Sentai companion robots IIRC...Turboranger maybe...(I don't have the 'bots easily accessible at the moment to verify, it definately looks Bandai to me)