Are you in a place where you can "just date" without any real commitment to try and make things work, and then just end it if things don't work?
I personally don't think you're in a place where you could just date her, because I don't believe you have completed your healing process and are happy on your own, which would complicate any relationship, but especially dating your almost ex-wife.
But, I wouldn't blame you if you said yes if you really felt like that was what you wanted, but I hope you would want it from a place other than you feel a need to be with her.
M - 9 1/2 years 5/5/16 - Bomb drop - 3 week EA 10/31/16 - We sold house 01/10/18 - D Finalized