Reschedule?

Some things have come up, and I have gotten way too busy during this week. To the point, that some really important things have been pushed back that cannot wait until after tomorrow to be done, and will likely take all day.  I'm unfortunately not going to be able to join the session tomorrow, but I'll be able to show up the week afterwards and for future sessions. I don't care if you guys decide you want to play without me, I'm just giving you a heads up that I'll be absent. 

What I have planned for this session is game-changing, so if we don't reschedule when everyone's available, my suggestion is that we do a one-off side quest. Same PCs, same campaign area, just some team building improv stuff. The book has several, but I'm leaning more toward making something up on the fly.

I mean I'd rather not skip a week, but I'm okay with skipping a session if all players aren't available.

A one-off side quest would make sense, we can just say that Faeron is spending some quality time getting information out of our new friend.

That works, if the DM is okay with it.