Will we code on quantum computers in rhe future? What language will work? Will there be new language for just them?

Yes and we will all have to learn brainfuck

If they​ write a JVM for it in some low level language and it's ​standard compliant I will have no problem with switching. :P

Given how world progresses so far... I don't know what will be the quantum programming language, but sure as hell JavaScript will run on them.
We already have node, electron, atom etc... so my prediction is that JS runtime for qm will be called Quark ;P