This CNN article by Jeff Duncan says Ron DeSantis is to fall after Mike Pence. [cnn.com]
My guess is when Trump is close to nomination, he will nominate Mike Pompeo to be his VP - although Vivek Ramswamy is effectively "auditioning" for a running mate to Trump from Day 1.
This time Trump will select a super staunch loyalist after Pen experience.
Boebert for her "skills " demonstrated in that theater
She'd be handy for those late night "phone calls".