No there aren't. There are descendants of the Pequots... but no direct survivors of that burning. The ones today didn't survive anything. Likely there won't be any dealing with the Pequot issue. More likely is that one day almost all of the Native Americans will have blended so far with American culture that they won't even identify themselves as Pequot at all, and life will go on.
As for the Palestinians, some day soon all the first generation muslims who had their homes taken away will be dead and gone... and all that will be left are descendants who will not have the same direct, legit claim to lost lands that their parents did. As time goes on, getting any land will be harder for Palestinians, not easier.
So your saying the jews are going to run out the clock so the palestinians should just forget about their rights? They have the same direct legit claim. The fact that some jew is on it now and that their parents are dead doesn't make it any less theirs