Im of the view that everything KASEI does benefits MAADI - be it research or copying or invention - in some way or another. Ideally I'd like to be able to plow any large profits KASEI makes into MAADI, while ensuring that KASEI can purchase what it needs to for its staffers to utilise - be it npc fuel goods, bpo's for copying etc etc - going forward. However I currently have no thoughts on how to utilise KASEI as a profit making tool (I did, but I have let those ideas fall by the wayside), and so for now profit is the furthest thing from my mind.
Having MAADI's more expensive BPO's sitting in a related corp, away from the fallout of policital issues in 0.0 and potential empire war-decs that often happen to 0.0 alliance's (as a way to harass their logistics), is also a great thing - especially as right now KASEI holds roughly 6billion isk in BPOs if not more* (My math may be off a touch). Which if in MAADI's possesion could fall foul to war and so on, or given the current difficulties on moving assets to 0.0 could be sitting languishing in a can somewhere not actually doing anything for MAADI, when even copying and research is a boon. As to ownership of the BPO's - all MAADI's, even the rather amazingly expensive ones I have recently purchased for the corp from my own funds, with KASEI just working on them and KASEI's staffers doing what they need to with them.
KASEI may set up programs of sorts, but for now the corp is relying on charitable assistance in the form of donations of TIME. I do it already - in fact I do it for two corps - with my ice miners. If anything was to be setup it would be a way to provide small isk amounts to the researchers (except mine of course) for their time, and maybe a small cut of any profits generated from their work, either paid to them or their MAADI characters.
Basically, after the move to 0.0 started for MAADI, I decided to use KASEI to prevent us keeping all our eggs in one basket run by germans who have their strings in PL's hands, as frankly I have little trust for either party, and should PL decide to reset the rest of EVE, then Fountain would become "fun" very fast.
As for KASEI becoming the hisec arm of MAADI - not in my lifetime. A hisec sister that does certain tasks yes, but not a hisec home for people full stop. It will always, for me at least, be a corp that does some of the backroom work for MAADI. Not a corp in its own right and that is how I treat it, it fulfils a role I am happy with, and does not need its existing functions complicated by full-time mission runners and such joining it. Theres just too many issues with cashflows between the corps if that should happen, and the corp ui sucks so hard to do what would work, is nigh impossible right now until it gets an overhaul.
*KASEI being in <MERIH> also helps keep down war-decs quite a bit, as people are less inclined to drop 50mill on a declaration.