After these 13 weeks of powerdown I will leave a few Steem on the account - maybe I want to use the account later on for something, but I don't know yet. The account will stay alive - as far as I know you cannot delete an account, because all is written in the blockchain and you never know what that is good for.
All I know is, that I don't want to sit on two chairs like you say - it's just too much work and I always try to have a quite clean desk ;)
As said above I will leave some Steem on the account, but for the rest I'll buy Bitcoin on Ionomy and hope that I get at least the money back that I have invested in Steem ... or more if the Bitcoin rises after I have spent all Steem ;)
Have a great day and stay safe and healthy my friend :)