Battlefield posted a new screenshot today (full screen here) and revealed on their tumblr that the support class will have a redesigned gadget: remote-controlled mortar, in addition to the already revealed XM25 airburst launcher.
Unfortunately, no further information was revealed regarding the redesigned mortar, beyond it being remote-controlled, allowing support players “to give indirect fire support while staying with the squad.” This sounds like a potentially exciting improvement for the mortar over what we had in Battlefield 3, which required the support to plant themselves somewhere far from the action. Because so little was revealed, there are still a number of ways in which this could be implemented. Will the support still have a deploy-able (and destroy-able) piece of equipment to place and then control from afar, like we see with the SOFLAM and EOD bot in Battlefield 3? Will it be a simple aiming system like the mortar in Battlefield 3, or will they implement something more challenging? Will it instead be a designator like we saw in the Bad Company series? There are a number of questions to be answered about the new mortar. One can only hope we will see it in action in the playable version of Battlefield 4 streaming from the Gamescom show floor.