Phwoah.... Good question. I'm not really much of a business man. Also... things are pretty good right now, isn't it? Lots of good licensed material, lots of activity in 40k and AoS, promise of some specialist game style WHFB revival coming, greatly improved public communication, and so on. I'm sure there's lots to stick the fingers into - but overall I don't really know.
I guess I'd chill down the Marinemania that 40k has always had. It wouldn't be a good business decision, of course, but hey, new xenos minis!
Also new Epic scale minis and Inquisitor-scale minis. Why not.