While there is always the chance that they might use it to launch a new brand, it would seem slightly odd to cast aside the Bold brand that is a strong one and doesn't have negative connotations like Tour or Storm.
That clearly says "brand"...well not clearly, but still.
It seems whenever a new device is coming out it gets called a bold______. ie bold slider=torch, bold flip=style (horrible name btw) This is the "bold touch" maybe because it has a bold keyboard, as opposed to the curve keyboard, but probably won't carry the bold name. Maybe they will come up with something decent for this, or just call is the magnum like was rumoured years ago.
I could care less what they call it, I rename my phones anyway, yea I know I'm strange. BLACKBERRY should distribute this"TOUCH THING" to all of the carriers like they did the 8300 series. Now that would be NICE