I'd be absolutely amazed if this happens.
The current common setups for funding bodies which already require open access are:
1. Can't go behind a paywall, so money is included in the grant for publishing costs.
2. Can go behind a paywall, but a copy must be made available somewhere else (not as common).
I have no idea why they'd go about building a geoblocked repository, that sounds expensive and I cannot see what problem it actually solves.