This trade is just a matter of time before it actually goes through, but multiple insiders have already reported that Ullmark has agreed to waived his no-trade clause if he were to be involved in a trade that would send him to Ottawa.
Going by this we could see the Boston Bruins either complete a sign-and-trade with Ullmark, or as soon as Ullmark is traded, we could see him sign an extension with the Senators.
The Senators need goaltending badly, last year a lot of teams thought they were going to be in the playoff race, but ultimately their goaltending let them down and they were a bottom of the pack team.