Just spotted THIS video over on the interwebs. Few keywords from the end of the video:
  Could reference OFP/ArmA as series. Planning to continue meaning continuation of ArmA, which is to be expected. Shift to new engine, sights locked, major project. I keep hearing ArmA 4 as I repeat those. It caught my ear so bad, and comments on youtube seem to echo my thoughts 😂   Right before this, Op.Drewski put up THIS VIDEO that did some good speculating too. Title might  be a little clickbait, but he makes good points, and now the BI video seems to somewhat confirm what he says.   Thoughts? 🤔