All i know off is in the PR side of things, with Ferrari poaching Silvia Hofner (Alonsos PR woman) from McLaren to become their new head of PR (I think Ferrari and Mclaren did a deal here) and Stefania Bocchi (Kimis PR woman) who is married to Maurizio Arrivabene leaving Ferrari with their Head of PR leaving as well. Its looking like McLaren have promoted Charlotte Sefton to Lead Driver PR for Carlos and have got a new Second Driver PR for Lando with them giving Helen Crossley a wider role in the social media team doing McLaren YouTube videos and such.
It seems McLaren are going to have a better and wider Social platform this year and Ferrari opting for a more opel, less hostile attitude for the press, do not be surprised if Vettel finally gets a Twitter/Instagram feed this year at some point.
Appert from that that's all i know.