There are exist some VDSL2 SFP Bridge Modems.

You can get them as CPE and CO (DSLAM) mode.

• CPE Mode
  • SFP-VDSL2-Modem
  • ALL4781-VDSL2-SFP
  • JNP-SFP-VDSL2

All of the available modules seem to be the identical and you can get them from 100€. They just work with Germany Telekom VDSL2 connections, but it can take some minutes until they finished syncing.