The best replacement for terminal server is vpn.

The best alternatives to terminal server are rated as following:
★★★★★  vpn
★★★★★  citrix
★★★★  remote desktop
★★★  vdi
★★  virtual desktop
★★  terminal services
★★  application server
★  virtual machines
★  remote desktop services
★  xenapp
★  rdp
★  vnc
★  vmware view
  client server
  multipoint
  virtual machine
  citrix metaframe

Your alternative for terminal server is not listed? Suggest!
Speaking about terminal server, one probably shouldn't forget about citrix.

Other search terms related to terminal server and their ratings are:
★★★★★ citrix
★★ sbs 2011
★★ sbs 2003
★ usb printer
You have in mind a companion for terminal server and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of terminal server in all years. Click on graph for more.
terminal server
vpn
citrix