Thanks for your interest, you're definitely welcome to join BBHG league if/when we (or BB developers, should they be willing to create such a league for qualifying teams) get the league created!
And yes, we could definitely open an own forum for that league, into which league tables (and certain statistics for example, should someone be willing to take that task of calculating and posting them to a forum) could be posted after each round of play.
In an ideal world it would be nice and easiest to be able to buy/gift everyone interested a Supporter package so that we could play in in an official BB private league format (and would avoid having to send challenges to pick up games to each of our opponent ourselves, etc.), but as it's not an economically viable option (for me at least) I'd find it crucially important that everyone who qualifies for that league can participate in it free of charge. So as private leagues are available only to Supporter package owners, the only option that I can see would be to have BB developers/owners to create such a league for us, or to create (and manage) that league ourselves.
Anyway, I'm glad to see this started to awake some interest on this forum - current update is that there are five of us now that would be interested in participating in this BBHG league (or whatever it's name would become, but that'll do for now), as I also recently received a private message from one manager who'd be willing to join the league.
So I suppose we're not too far anymore from having enough teams to create a league with reasonable amount of teams - please do remember, that we don't have to stick with "typical" league formats (and such "restrictions") should we create a league of our own, and playoffs could even consist of 4 teams (instead of 8 teams), or there could be several smaller groups of few teams from which winners or first two proceed to playoffs etc. - it's really a blank canvas for creative ideas. Everyone who has followed team and international sports a long time knows that there are so many league formats to choose from, and some of them are in a way more interesting than the traditional one. However, what I'd really like to stick with, is this one and done-format in playoffs (as is the case in NCAA basketball for instance), as it creates so much more tension in a match and gives an underdog more realistic chance to beat anyone - "in any given Sunday" (anything is possible), as they say in USA... :)
However, if teams eventually willing to participate in that league would hate the idea of this "one and done"-playoff format, maybe one possibility would then also be to play two matches, and if both teams would win their home matches, better point aggregate would then be used to decide which team proceeds to next round of playoffs. If my memory serves me, this format was used back in time in Finnish basketball league (highest league tier) to determine the bronze medal winner. Anyway, enough for now on my part, just wanted to throw in some ideas/thoughts, and all the fellow managers, please feel free to do the same here in the forum or in a form of a private message!