It appears to me that chances are very very very slim to none (I hope to be wrong). I've had to get over ACTUALLY UPDATING MY SGS4 to ME7 before I realized the "SERIOSITY" of my actions.
I'm hoping for change with you.
This is old but I just wanted OP to know that if he is running vruame7 and he wants a custom rom and recovery. safestrap is the only vruame7 compatible recovery and to install a rom it must be a touchwiz based rom
I am running hyperdrive on my vruame7 galaxy s4