Epic Games is a privately owned company, thus we don’t know their financial state. We don’t know which debts they have and what ventures they have undertaken over the last few years. They might have huge debts and Fortnite might not be enough.
Sure, it’s possible, but I think unlikely. This sounds like the normal BS reasons companies give when their investors want better margins. I’m guessing Tencent isn’t happy with profit margins and wants a better short term return for their stake.
But you’re right, it’s all speculation at this point.