Other details gleaned from the commercial include a weather and season system, and a twenty-four hour clock. The display at the top left of the screenshot above reads "Spring/Week Chart/(Sunday)" and the sun icon seemingly indicates clear skies. Given that in the few seconds that elapse the clock jumps from 07:39 to 07:41, it's clear that time has also been sped up in -next 0rder- as it had been in past World games. The commercial is embedded below.
The gameplay implications of having multiple Digimon at once are significant, as it makes possible Jogressing two Digimon to create a new one (i.e. Agumon x Gabumon into Omegamon), and opens up the option of team-based battles, or of tagging in one Digimon when another becomes weakened. Up to now various publications have only shown one Digimon on screen at a time.