EZA never suspends an account entirely (that happens rarely, probably if all the articles were plagiarized or copied from elsewhere) I haven't heard anyone getting their accounts suspended permanently. Al.
What if it does happen, do they also delete the published articles? Deleting articles would also do harm on ezinearticles site, IMO.
When suspended your articles will remain. If your account was then deleted, your articles will also go from their database.