just to give you an idea of what is involved here, and why dol7 is late (its not late, as 6.2 was dropped, so D7 is infact being released early)

Because D7 is a bridge version between D6 and D8, D7 needs to be able to bridge the gap between both versions, this means that while building D7 and making sure it can import D6 sites to it. Boonex also have to work on D8 at the same time to ensure that D7 can be imported to D8.

this means Boonex has to work on both D7 and D8 simultainusly so that see more the future posidon versions, are 100% core and modules, where as D7 is mainly modules it still has some features within the core.

Remember D7 is a bridge between D6 and D8, so it is much more complex that a standard upgrade of a normal version it has to bridge the gap between two different versions, the old and the new.

Boonex you have done a great job, i'll wait till as long as it takes.