What's the future of Xen in mainline?

My sister runs an internet cafe , for her i had put up zersohell and ipcop using qemu on a
single machine . That machine is without monitor , she only need to switch on the machine and
can follow the status of vm's remotely using vnc (only if required) and can manage zeroshell
and ipcop through web interface. Good thing about qemu is that it can use linux native network
tools like bridge-utils , this way one can create sophisticated virtual network environment
using qemu.