Unfortunately, due to supply issues we can no longer source the Zyxel range of VDSL/ADSL Modems.
We still have an occasional requirement for this.
Primarily I want something reliable. One of the awesome things about the Zyxels, in the 20 years we have been selling them, I have hand on my heart had 2 faulty units inside of their warranty period. It makes troubleshooting so much easier.
It would be nice to have a slightly more powerful firewall, something that can limit port forwarding by source IP etc. Also something compatible with UFB so that budget concious customers don't have to stump for a full UTM device if they opt not to.
A new user friendly UI without lots of bugs would be excellent too. Something helpdesk staff can easily setup without a CCIE :)