Epic Games went to the PlayStation Blog to detail their plans for Paragon in 2017. As the studio has done previously, they’ll continue to introduce new characters to the MOBA every three weeks. They did mention one potential caveat, however, as they said “except maybe over the holidays or when we?re shipping something really big that requires the focus of the whole team.” Epic Games recently did that in order to launch Paragon’s major Monolith upgrade, which significantly changed how the MOBA was played.
The system getting the biggest overhaul is the game’s card system. Epic revealed that they are redesigning the system “right now,” with the goal to “make cards more valuable and impactful to gameplay and increase clarity and ease of use.” In addition to that, they’re also looking to add additional modes. The first of these will be PvP, which is a shorter version of the game that typically lasts less than 20 minutes. A PvE cooperative mode is also in the works, although details were scarce on that. In addition to these major changes, there are also a lot of smaller ones being worked on (list courtesy of the PlayStation Blog):

Matchmaking system V2. All new from the ground up.
Lots of balance changes. We know many things need to be improved and we listen intently. Expect continuous improvement and a handful of mistakes along the way.
Banners: add your signature to every kill with this new system (screenshots and...