Hi,
Current versions ? No. Future versions, at some point, very likely.
There is no benefit in trying to support the new router for HikaShop for now. And when we looked at it, we couldn't find a proper example or documentation to change the code on our end. So we decided to wait for now.
Regarding your URLs, it has nothing to do with the old/new router.
The issue is that the URL is missing the itemId. HikaMarket tries to automatically fill it based on the "Vendor default menu" setting of the HikaMarket configuration. So if you have these URLs, it means that either you didn't set that parameter to a HikaMarket menu item, or that URL is generated by another extension which doesn't take that parameter into account when generating the URL.