1. Regardless of the diehards, get rid of the physical keyboard. Sure the purists want that, and I understand, but this is a business. A business needs to sell a lot of phones to be profitable.
Right now, all they have to differentiate themselves is the keyboard. If they have a good one, they will be able to serve a niche market. If they don't have a keyboard, they won't have even that to appeal to.
I would not even bother with the flagship - I really don't think anyone is going to want to pay flagship prices for the BB unless they do something REALLY killer, and even then it's not a sure bet. And given their history, I doubt something fantastic is in the works. Let them put out a solid mid-range phone, not too expensive, with one or two REALLY good features and that might draw people in.2. Stick to only 2 phones. A flagship and an entry level. Something to get in the hands of everyone, and make updates easier.
3. Support the device (updates) for a minimum of 30 months.
Yes. I think that it won't be what draws people in per se, but it might make the jump easier for people who are considering it.