Purely based on RandomC's preview (h/t Chizumatic), here's what jumps out.

• Denki-gai no Honya-san: CGDCT + comedy {Update: Sadly not CGDCT. More like Working meets S.Y.D.. But it has its moments.}
• Yuuki Yuuna wa Yuusha de Aru: CGDCT + action {Update: madokist?}
• World Trigger: shounen? Yes. Naruto and GBF were awesome.
• Orenchi no Furo Jijou: plz be better than Muromi-san. {Update: it's not.}
• Daitoshokan no Hitsujikai: endless harem? It was a while I hit a good harem.
• Kiseijuu: Sei no Kakuritsu: parasites, horror. Completely not my thing, but it cannot be cute girls doing cute things all the cute time.
• Shigatsu wa Kimi no Uso: hey, Nodame was superb {Update: sadly, nope (TBU)}
• Girlfriend (Kari): a cellphone game? Sign me up. {Update: Woops.}
• The Idolmaster Movie: already out and I haven't yet seen it... OTL orz ...
• Gargantia OVA: 11/21 {Update: seems nice}
• IS OVA: 11/21
• Futari Ecchi OVA: The original was junk, but perhaps they can re-do it like KyotoAni re-did Kanon.

UPDATE: Madan no Ou to Vanadis turned out to be a Tatsuo Sato show. Stilts, your previews are so useless.

UPDATE: Ore Twintails ni Narimasu opened well and I forgot about Kampfer when I dismissed it from the list above.