In response to a players question, Rubin said its very likely youll be able to voice chat with the enemy team in the futuretheyre just not sure when [it will arrive] at the moment. Its on the list, he continued, so you can rest assured that the games development team is working on bringing it into every match you jump into.
Source: N4G PC Toxicity is about to get a buff in XDefiant, as dev confirms lobby voice chat is in the works