1) no
2) i dont think so but i checked for update manually and nothing was there
3) windows update still works so i dont think so
4) pretty sure its legit
Well then you more than likely won't see it until the end of the month:

It seems that on all computers, regardless of whether or not they're fully updated or fully compatible will get the app at that time.
For the last time, it won't, for multiple reasons.
First off, Windows 10 holds a lot of features that Windows 7 doesn't, and Windows 8 holds features that Windows 7 doesn't. Are you really going to throw all those current features and every other significant feature that will ever be released just because you feel attached to your current OS?
Second, security updates. After 2020 your computer will no longer get security updates if you run windows 7. After that, your computer is literally a playfield for any hacker that's worth his salt. Any new exploit they find, they can and will abuse on your computer and you will be royally forgeted.