No problem :)
You will still have the server doing DNS and DHCP for the current 192.168.1.x range then you will need another device to manage the DHCP for the other x.x.x.x range. The range does not have to be in the 192.168.1.x style, it can be something like 10.1.1.x or 192.168.50.x.
I hope...