Hi,
The integration between HikaShop and Watchfully is inside Watchfully.
As I don't work for Watchful, I can't confirm the state of the situation.
However, no one told us that the integration between HikaShop and Watchfully didn't work anymore, so I can only assume it is still working.
So if you have trouble with the HikaShop updates, I would recommend you check directly with Watchful on what is the status.
But maybe the fact that the subscription is expired for HikaShop, might be linked to you not being notified of the new versions ?