Will prefabs have a limit on pieces??

Since groups supposedly can only have 64 pieces, however you can get around this by grouping multiple groups, do you all think the new prefab system will have limitations or can we save massive groups as prefabs??

It would be extremely laggy and glitchy I think to be moving around extremely large groups, just go into forge and group everything together. It probably will be a similar system to grouping and then just saving, but I wouldn’t recommend 150+ objects.