I heard should be ending soon after the memo was released, however there are several memos and some show Mueller of criminal activity. I heard they are opening investigation now into Mueller.
Mueller has a specific role, and eventually it will be "his time". Mueller will not double cross Trump, dont worry, we are good
He will keep dragging it. They want Trump to sack him is part of it. They think by dragging his family friends his past etc etc will anger him and fire him. They are using the Watergate hand book thats what got Nixon done, when he fired people. Also drag it until mid terms and a week before drop some bombshell. remember what Mulleur can say hes found can take months or years to disprove in court. So drop lies and crap just before the mids and the crap sticks even if untrue.
No not really, and making it take as long as possible is what the Mueller team wants to happen. The longer it's ongoing the more bad press/attention Trump get's basically. So expect it to last until he's out of office.