I'm no expert on production/research. Just seems that t3 would be a good and natural follow up on wh expeditions.
Dont get me wrong I totally agree it is the best option regards wormholing, but doing it along with other isk and time intensive things like caps or t2 is not something to be undertaken lightly. its one problem is - how certain is its future? How much will it be used by the playing populace? Is t3 really worth looking at at this early a stage given its semi-unfisihed and limited in scope?
Caps requires alot of isk for startup - we have a large number of the parts bpcs/bpos available which lessens that, but then theres the actual ship bp's to purchase (using BPC's is all well and good, but ideally we'd want our own bpo's so we arent paying out for bpc's lessening possible profits from every build, more so if we bill ourselves to alliances as cap builders - we wont be able to gouge our alliance mates just to keep a profit going as that can and does cause resentment.
T2 - needs moons for materials / reactions for the t2 components. Moons obviously require space holding/ability to defend operations and aid in overall security. Requires invention to get the T2 bpc's from t1 bpos using a stack of things from t1 versions of the thing you want all the way to decryptors and datacores. Problem with this is - the better the moons the less likely a corp new to an alliance will be given access to what they have (and the universe's majority of r64 moons are in Russian (AAA's space is good for them) & Goon hands (Delve especially is covered in them). Beter moons give better reactions/moon mis for the better (read more expensive components). T2 production is nearly a closed business thanks to the mineral requirements of the component side of things and how volatile that market is (t2 component prices have seen a 25% rise in the past 4 months, resulting in t2 item/ship prices increasing too) whereas once it used to be limited due to T2 BPO ownership - lucky invention made that less of a limiting factor.
T3 looks easier to get into, can be done anywhere really with the 0.0/lowsec holes just giving a better chance of better materials from the sleepers/sites within them. Just takes time to skill for - tanking/dps skills, creation skills, exploration skills and what not and then time to get into the holes to do the shooty to haul stuff back and get the actual creation done. Given its all findable, theres little isk layoput beyond the manufacturing side (im still unclear as to IF there are limits on where T3 ships can be built - ie it could be that they are limited to being built at poses and thats only in low or 0.0 etc)