Drosera Capensis varieties to my knowledge don't require a dormancy period. I think the best time to repot is just before spring, and into early spring. or thats when i used to repot everything. though i did occasionally repot my drosera capensis through the winter, because my pot has a mix of the varieties, when i get new ones i add them in. when i do this i clean the plant up clipping dead leaves off. usually after the repotting depending on how rapid of a change it is, for mine its not a big change. their outer leaves might die off as they produce new healthy leaves.
i also am sortof harsh with them, but when temps start getting warm enough ill take them outside and ill place them in full sun, when they were in partial sun in the windowsill. it usually takes them awhile, but then all the color variations are shown strongly through their new leaves, and i clip the dead leaves off. Very hardy plant
hope this helps
dustin