I agree that from a company point of view it wouldn’t be wise but on the other hand, while searching for controller, I noticed that the SB is out of stock in most places here (Belgium) and only the blue edition seems to be in stock.
This might be an indication of a new product launch coming up. Of course, it’s not because mark II is released that the previous version stops working all of the sudden. However, on the other hand, it could be possible that new iteration has for instance gain controls / VU meters and is 75 USD/Euro more expensive than the current SB. In that case, it would be worth (for me) to upgrade to the mark II.
Or turning it around, I’d feel “bad” if I buy the SB now, only to find out a mark II is released within a few months which has the above listed additions.