I honestly think Pentax Q will find its own market, and the only real huge defect is its price. Thinking about it yes, it won't have a bigger sensor because it would imply totally different dimensions. Still I would like one instead of my wife's Fujifilm F550EXR. And, the
Q is getting cheaper.
As for the K-01 successor that will not have a viewfinder accessory I honestly doubt: leaving aside the design which is a bit like Marmite, the only real draw back is the lack of an EVF, amply criticised on pentaxforums and other review sites.
I think Ricoh-Pentax will correct their first attempt, otherwise they are stupid.