NetSus 4.1 and insecure PHP

New Contributor II

We were hoping that upgrading to NetSus 4.1 would update PHP to a more secure version. But the PHP version in 4.1 is still one that the security department at one of our customers doesn't allow in the network.
We tried to upgrade Ubuntu to a later version, and that solved the PHP issue, but broke NetBoot.
Is there a chance that we will see an updated NetSus within reasonable time?