The red route should be ok to ride up until Friday afternoon, the WC course does effect a small part of the red route but I would imagine the red route will be closed over the weekend of the race or have very limited access.
The Citizens race will be on the Saturday along with practice sessions, the main race will be Sunday with events in Pickering on the Friday night
The WC course is currently open, however it does cross with footpaths on a couple of junctions and there are currently small conflicts with the current red route so you can't ride it in full. Please be aware of footpath users and red route traffic
Please note this is how I currently understand it, however anything could change
Drop me an email if you need more info and I will try and help as much as I can 🙂