No idea what the ZCL team plans are, but answers will be coming for ZEN. Most of the communication happens in the slack, so despite how many questions there appear to be over here in this thread, work on this issue is quite active.
Besides the ZEN core team and other contributors, IOHK is currently looking into the ZEN code with a primary focus of "...making sure everyone's Zen is safe and that the code is in a stable state"
A couple of the people from IOHK that are assigned specifically to looking into this are Prof. Roman Oliynykov, PhD
https://iohk.io/team/roman-oliynykov/ and Dmytro Kaidalov, PhD
https://iohk.io/team/dmytro-kaidalov/ of the Veritas Team. As an example, they wrote the dash treasury report
https://iohk.io/research/papers/#NSJ554WRI am very excited to see everyone that is taking a real interest in the ZEN code and becoming involved. More information will be coming soon. Although I hate when people say it, patience is a virtue right now. Greatness is happening and I have been quite impressed. I am looking forward to some of the possible future plans for ZEN and its partnerships!
In the meantime, if you have coins on ZEN from prior to block #110000 (ZCL coins that you held before the ZEN snapshot was created, the 1:1 ZCL:ZEN coins), the recommendation is to not create new TX's from those accounts (for now). Although trading is still active, this is why ZCL and ZEN withdraws/deposits have been suspended on Bittrex. It is to protect you (and the exchange) from any possible replay losses.
If you have any coins that were mined or otherwise transferred to you in addresses created after block #110000, I am not aware of any issues. To be clear though, I am not fully aware of the potential issues if you control address with balances on both chains. The slack seems to be the best source of updates:
https://zencash.slack.comdisclaimer: this isn't an official response, just info that has been made public in the slack