As far as the aftermath causing changes in the law, the biggest problem is keeping the NRA from talking about "compromise". I don't think Trump would sign anti-gun legislation, but if the NRA tells him it is a good idea, he might do it. The only other concern I have is Republican Congressmen getting weak in the knees over leftist media/propaganda.
In Texas, I don't think there will be any anti-gun laws passed. The legislature won't be in session until next January and Gov Abbott has been very pro-gun. If anything, it might hurt efforts to move toward constitutional carry or other efforts to roll back the restrictions already in place.