No guarantee that Leicester collapse again but last season has to be playing on their minds at this point. It's hard to predict where the teams in their final three games will be at mentally, normally I'd say big teams don't go through an "on the beach" phase at the end of the season, but neither the mancs nor spurs feel disciplined enough to fight to the end.
All that said I'm not sure we need a Leicester collapse or perfect form, all we need is for Leicester to not have a purple patch and for us to find something like top four/title challenge of old form.