I'd like to make parent-context-referent variable references possible (e.g. ${animal=fox} {${animal=fluffy ${animal} } }, but that will require an API change for SamplingContext (a stack of variables). If we can live with that, sure, I think we can ship.
Originally posted by @akx in https://github.com/adieyal/dynamicprompts/issues/63#issuecomment-1489221413