So far, we've all been working under the assumption that BlackBerry's next all touchscreen flagship device would be the A10, because the device is part of BlackBerry's so-called "A-series". However, that idea never made all that much sense since BlackBerry has two device options on the market: the Q-series with a physical keyboard and the Z10, which is all touchscreen...
Source: http://www.phonearena.com/news/The-next-BlackBerry-flagship-could-be-called-the-Z30_id46021
Source: http://www.phonearena.com/news/The-next-BlackBerry-flagship-could-be-called-the-Z30_id46021