Cryptic is preparing to test a level 70 PvP solo queue for the PC version that would shut out any premades from participating. The test will run from September 8th through the 15th and could possibly return on a more permanent basis in the future.
“Only players who queue alone can join these solo matches, which will contain a more balanced field,” Cryptic said. “We decided to run the event for a week to collect data from matches that happen during this time so we can determine our next steps.”
Source: Neverwinter