Well, that's a decent name. Another alternative could be perhaps Future Life (for morons of course). Although it is a little easier to remember, Sidereal life has an advantage over the old RLFM, in that it was easy to mistake it for another game due to a generic name. Future Life may run into this if you do it, Sidereal I'd doubt would ever come close to confusion of that sort though.
...also of note, I saw a few of the old models like the Zealot. Not only did they look like they came out of WC3, but well, they mentioned they'd have the old models too. This may mean we still can get the medic, and if were extremely lucky this also will extend to Infest/Normal Kerrigans. That or there will be a flashback to human Kerrigan, or Infested will make a new apperance. Either way, expect atleast a few female models in the retail map editor.
Also, random suggestion to put in, but to make an easy door just use the supply depot. Their perfect for the job.