The droids stopped firing and the voice of Dooku resonated through the arena. He bid them surrender, something none of the Jedi were prepared, or willing, to do. Aren had been fighting for a long time, by this point, he had grown tired, but was not willing to surrender. He would rather become one with the force than fall so low. Arven, thought that there was no hope for their survival - then the gunships arrived. 

There were thousands of clones arriving in drop ships. Master Windu must have taken out their defenses, that could be what kept everyone waiting. The gunships created a perimeter around the surviving Jedi, landed and flew them away to the battle outside of the arena. Arven shared a gunship with Masters Fisto and Mundi. No one spoke casually as they flew to the nearby battle. 

The gunship landed in a cleared space, near a few tanks and other gunships. The three Jedi stepped out and were greeted by a clone in white armor with yellow markings. “Sirs!" The clone saluted, "I’m Commander Stone, we have three companies awaiting your command.” Aren and the other two went their separate ways.