PoD being really any time after the Napoleonic wars. How do you keep the Europeans in Africa and Asia until the year 2000, bonus points for still being in China.
Well, it's not that hard. Delay the return of Macao to China for just a few days (12 days, exactly) and you'd have colonialism in the year 2000
Anyway, I thing some form of direct European colionialism survives to this day. I'm thinking mainly in French Polynesia, but there are other cases. I mean, France set of nuclear bombs in the islands 15 years ago, something which I'm sure the "natives" didn't approve.
The situation of French Polynesia might be considered a form of colonialism, although one mantained more through means of persuasion (i.e. money: subsides, public emplowements, etc.) than by force. But "colonialism" also worked like that in the old days. I mean, the Europeans weren't constatnly fighting Africans in the 1930ies or 1940ies, but tried to coopt the elits and convince them than what they were doing was also good for them. Something the European colonizers might have even believed themselves.
Of course, if you want a survival of colonialism in a large scale, other Pods are needed. Avoiding WW1 is the best, as other have said.