Asking for an extension to the dev fund may be challenging for investors.
Four years ago, the dev fund was supposed to end. The community renewed it based on the premise that further development funding would add value. Objectively, from a financial point of view, at least, it failed.
IMO, if one extra year is needed to resolve governance issues, this shows inadequate project management and planning. It further reinforces the opinion that Zcash cannot meet its deadlines.
As an alternative, let’s stop the dev fund in Nov and put the establishment of your proposal as a project to fund. If it gains enough support via donations, it gets implemented. If not, the community was not keen on it anyway.