SPOILER ALERT! If you are not up to date with the HxH manga, I recommend you to skip the Artist's Comments for once!
Since chapter 325 ('Joining the Battle'), when Leorio made his stellar return (after years!), people have been wondering where Kurapika is, as he was mentioned by Leorio (when trying to phone him, with no response) and his underlings have been seen during the election and paying Gon a visit at the hospital. Senritsu, who is really close to Kurapika, hasn't spoken a word about him since she returned, so people are starting to speculate about the whole thing. Some people just call him a 'bad friend' for not going to see Gon without knowing why he didn't. D: Togashi even drew him in a bonus page regarding New Year's Day as a tease earlier this year, but we still don't have a clue.
The only thing I want is to know that he's alright. ;__; I hope he comes back soon. We are waiting for you, Kurapika!
Edit, March 7 (still a spoiler): OMG, he came back! A silent return, but less is nothing. Loving chapter 339. <333
I wonder what happened to kura kun? T_T
Pika is back, finally xD