Scant details

It's not much, but it's something. Halcali are definatly recording again. As to what they were recording, Yukari wouldn't say, mentioning only in her diary yesterday that they both went out for curry before heading to the recording studio. So was it the new single? Work for the new album? I pored over the entry from start to finish but there was nothing more than the frustrating hint that she would reveal some information ("We also ate curry before recording Twinkle Star, Check!!check!!it!! and now...this time too!"), but in the end she never did.
Which reminds me about another, even scanter detail. I've read a few rumours that Capitol's Taichi Master is one of the producers working on album 3 (and in another connection, Sony's DJ Tasaka worked as a producer on the new Taichi Master album, and was also involved in Ongaku No Susume's Oboroge Copy View). This might come to nothing of course, and I only mention it because when I posted that rumour I read about Twinkle Star last year, it (eventually) came true.
Hopefully there's some more concrete new single/new album related information just around the corner.