Unless she confronts her behaviours then, yes, she could very well revert back to those patterns of behaviours.
If she is truly remorseful she will give you all the information you ask for- passwords, conversations, a timeline on who these guys are and how she found them!
Do not make the mistake of rugsweeping and do not make the mistake of allowing her to dictate how your R and M goes from now on.
She needs to be willing to walk over hot coals for you to make you feel safe in thsi relationship again!
Get counselling as it will help tremendously. Your WW needs IC too.
Read books on the subject:No- get your wife to read them first!
After the Affair is a good one (I'm sorry I can't recall the author) as is Not Just Friends by Shirley Glass.
And remember this one fact:
Your wife is broken in some way and did this to herself.
There is nothing that you either did or didn't do that caused her to do this. If she ever says "I did it because you did..... you didn't....." then brush it off as she is just excusing her behaviours.
By not facing up to what she has done she is actually making it harder for you to R.
Stay strong and keep posting.
You will get through this- trust me... I thought it would kill me but here I am.. stronger, better and happier than ever.
And yes- still M to my FWH!