We should expect the House will continue with impeachment if Trump continues with the wall. The question of whether he remains in office will turn on the votes thereafter to Convict in the Senate
The House will push toward impeachment whether Trump caves in to their will, or not. His very existence is a cause for constant angst and anger to them. The wall is only an incidental justification for their hatred of the man.
Cutting to the chase, Congress will push a detonator switch on this country if they impeach him. That, you can depend on.
The courts will do the same thing if they try to prevent him from exercising his authority to declare a state of emergency.
Come on, face it, you just were not keeping up with the pace of the conversation re Trump's predicament. The moment you formed in your mind the question, "what votes", you should have realized the answer.
(Clue: "What votes present an immediate danger to Trump's presidency even prior to the next election cycle?")
Have a nice day.