Once Trump wins Indiana, I think he should stop mentioning Lyin Ted altogether. Focusing on Hillary will get Trump more media attention and we can start the run for the General!
A lot of that is up to Cruz.
I expect Cruz to be a sore loser again and have some sort of announcement the day after (Wednesday) to do what he can to deflate Trumps big win.
Trump always responds to that kind of thing, and that's what a lot of us really, really like about him.
Lyn' Ted will be part of the shtick for as long as Ted invites it.