Finishing a strong second-- how long could the GOP battle go?

[NHPolitico]

Since only the following states have true winner take all:

Arizona   
Connecticut
Delaware
Missouri
New Jersey
New York
Utah   
Vermont   
Virginia

And with no one really seeming to gather a sizable base of support, with second place finishers finishing just behind the top vote getter in each state, couldn't this process drag out for quite a while for the GOP?

Has anyone run any sims where reasonable outcomes in each state leads to chaos late in the process of no candidate having enough delegates or having no commanding lead? The superdelegates could tip the balance to make the lead a lot bigger, but a mere narrow lead by the eventual winner could cause plenty of dissatisfaction with that result.  It seems that it's very possible that no one could really get momentum in this race, just candidates picking up delegates in various places and never getting a big lead.