Rather less... Huawei is apparently already working on its own software, which can replace that of Google. If the situation has not calmed down by the deadline, it will probably be used for new devices (or possibly as an update for existing ones).
A massive price drop is certainly not to be expected, at most some changes.

At least I'm happy not to have a Huawei at the moment. But it's impossible to say whether the other mobile phone manufacturers will be spared. Trump will surely build a wall around the whole of America soon.... :P