One day in the past, i decided to have a pvp match with my friends. There were 3 of us so I went along with a random stranger. When the battle started My team mate didn't arrive, even when the countdown ended. I still won though but this is a problem.
Sincerely Jeffrey Spirithunter level 69 necromancer "No pain, no gain..."
The only thing that I see could be done about this, is after the timer runs out if either side lacks all players the match could be instantly cancelled.