The original plan was deemed an impossible dream because, by the time a detailed analysis was undertaken, the number of local hotels and other venues actually doing the same thing made it incredibly competitive plus BFC had no experience whatsoever (apart from the Princess Royal debacle) of running a conference venue, so it would probably need to be outsourced, anyway. The well-documented decision was made to focus BFC and the new stadium on being a sports venue to generated income through rugby (the long-term licence for LI) and for use in football and rugby outside BFC and LI (e.g. the UEFA European Women's Championship and the choice of seating colours to be TV-friendly). In addition, to use our recruitment model to be an income-generator – something the club has an incredible amount of experience in. The target is to be as neutral or profitable as possible financially whatever league we are in; the only reliance on Premier League income is if we are in the PL.
Once the decision was made to focus the stadium on sports, the next question was build-ability. That is why the capacity was reduced – to allow a stadium to be built at reasonable cost in reasonable time. Upper tiers were removed because the cost (and time) of the foundations and build outweighed the benefit of the seats; similarly, any consideration to extend over the rail track (and the monorail).
This still does not prevent the club from using the hospitality facilities designed for premium seating to cater for non-sports events but this will be an income stream over and above the primary focus on sports. Again, it is most likely to be outsourced as there is no experience in managing, manning and catering for such events, meaning that BFC would need to staff up for things that will not be 24/7.