I'm reasonably certain the party is going to hand it over to Kasich and it's why he's still in it.
I don't think so... maybe if Kasich were doing better and had more delegates... I think they hoped he would gain momentum but it's not happening. If the party elite try and shove Kasich in front of both Trump and Cruz, there will be a third party and maybe a fourth. The GOP will cease to be a viable political party. I really don't think they are dumb enough to go down that road but I could be wrong.
The more likely scenario will be a brokered convention where the Establishment gets behind Cruz in order to stop Trump... not because they like Cruz but he is the only shot they've got left. It's still going to be a risky proposition because the Trump supporters seem to be a little green on how this process works. I keep hearing them say... well, if Trump has the most delegates it should be him... but that's not the requirement for nomination. That doesn't mean Trump won't win, he could still pick up enough of the uncommitted delegates to get the needed majority before Cruz. He probably won't need as many as Cruz. But it's probably going to a second or third ballot. There have been rare occasions it has gone as high as the 7th ballot. The top candidates just continue wrangling delegates until someone has the majority.