Honestly? We're still working on it.
The defenses are taking quite a beating and are in a pretty sad state. While we had always considered doing stationary defenses during qualification matches, we were considering rotating for elims. Given that this might now be impossible, we are trying to figure out how to best secure them and which ones we may want to leave in permanently.
Portcullis is definitely out for MAR.
Thanks for asking! We hope to have an answer soon.