If they're installing a leased line - then you won't be able to order anything, sorry
If they're installing FTTP - then it could be available from a few months to never (sometimes FTTP is partially installed and never completed)
Speeds available on FTTP today are 40/10, 80/20, 160/30, 200/20, and 330/50 (*), but from end of next month new 500/75 and 1000/110 products are being released.
(*) there are also very expensive business services at 500/165 and 1000/220, with large up-front install fee.