Are there any border run services from Bangkok to Cambodia next week?

Yes, but some are going at different times now due to the affected opening hours at the border checkpoints.

I am going back to Thailand tomorrow. They are limiting working hours and Thais are not allowed to enter Cambodia anymore unless they work here, but other than that the border is open.

I still find what happened yesterday at Poipet a bad joke. The Thai military basically closed the frontier 6 hours before official closing time without announcing Cambodia or their own citizens and residents, telling them to stay in Cambodia overnight and come back next day