I know staff have said that there is a plan for this, but in the future as part of a larger overhaul of mechanics.
I'd like to suggest that you consider working up an interim project to address this issue.
Divide barriers into 2 classes - ablative and non-ablative - and make all spells within each group mutually exclusive. A new spell cast would remove any other spell from that group in effect. Something relatively simple like that.
The situation with barriers has gotten really out of hand, and new dev just keeps making it worse (IC tattoos, temporal eddy). I think waiting for a theoretical overhaul in the distant future is too long, it's already been too long.