From: SPB-Cooperator:

I am hoping that in 9-10 years the likes of farage, johnson, mogg, gove, may have not *****d up my desire to retire to Prague. I have had nothing in writing guaranteeing this.

Nobody is likely to have had any effect on your desire to retire to Prague.
Your ability to retire may be another thing, but again, I doubt that Brexit will have done anything to prevent it.