There's certainly capacity for more (indoor space would run out before outdoor I'd say) but I'd be surprised if they had more than two litters of young here at once (not least because they look set to be an 'in-demand' species!).
Yes, I can see how demand will mean cubs will probably leave and be prevented from building into a sizeable group- which is a pity as eight or ten of these lolloping along together makes an impressive sight! But maybe 'saturation point' will be reached one day and some will stay on longer.
The main problem in Europe is now , I understand , that nearly all young produced will be related to each other . New blood from South America is badly needed if the population is to grow without too much in-breeding .
