Multiple VLANs on multiple Hotspot gateways

Is this possible?

Currently I have 5 VLANs running on 5 different Hotspot gateways. All 5 Hotspot gateway are configured identical. Is it possible to just have 2 Hotspot gateway running with all 5 VLANS active?

All I am trying to do is cut cost and the number of equipment but still maintain redundancy/backup.

Thanks in advance.