This is quite a monster, but my number one concern is availability, pricing, and performance of the WiFi modules. Will there be a factory bundle with board, WiFi card(s), and case? What's the EMI/RFI situation given that there's no indication of any shielding like you'd see in almost any OTS device?
I think only a few people have some boards. I’m not aware of any OpenWrt developers that have one, maybe @daniel ? BPi R4 Pro will need some quirky user space configuration tools though. The 10G SFP/RJ45 WAN combo port and 10G SFP/RJ45 LAN combo ports are switchable via GPIO, e.g. not both usable at the same time. Will need to be able to configure this somehow.
Additionally, the LAN use MXL86252C switch, which is a 7-port switch with 5x 2.5G physical and 2x 10G SerDes… so the 10G RJ45/SFP port will use one 10G SerDes and the link to the CPU will use the other… meaning that one single 10G uplink will be shared between the 10G LAN and 4x (one 2.5G PHY is unused) 2.5G ports.
Unless you’re using all ports to their max full time, you probably won’t feel the bottleneck but I’m sure some people will. Still a pretty beastly board and a fair compromise IMO to give users the option of 10G and multi-gig ports.