HTC has already begun teasing its next flagship to be unveiled on March 1st, just a day before MWC kicks-off in Barcelona. The invitation doesn't say much about the device, but just mentions "utopia in progress." with a cosmic background which might hint at new camera tech.
Although at present now much is known about the new HTC One, but you can bet that the company will be moving away from its UltraPixel camera tech which has been the only sore-point for prospective buyers.
Source: Engadget