You could quite easily say hardbass is the term for the raking style of bassline that distinguishes hardstyle, but i think its a pretty gay word, so im gonna stick with hardstyle.
It is true there are new genres within hardstyle - melodic (Pacific Link - Planetary Collapse (Luca Antonlini mix)), dark (Mclaren - Monoid (Hardstyle mix)), techy (Luna - In Control), bouncy (Hardnation - Humanoid (Gary D Hardbass mix)) blah blah blah blah blah... who gives a shit, its all hardstyle to me, cos of the distinguishing bassline, and also on-beat claps.
On another note, i was in a record shop yesterday and saw DHHD - Indication labelled as 'trance', which shows how negligent the UK scene is to what is happening in Europe right now.