It seems like a lot has happened this year, so let's recap what we know about each member.

Riyu-  We know that Riyu is still working on solo work, and doing some lives.  She released two songs this year, both unfortunately for H-games, but they weren't bad songs if you just look at it as Riyu.

Sayaka-  She now goes under the name Ako Tojo (I'm assuming this is her real name, because Emi goes under the same name in Kosumosu).  She's in some group that I can't remember the name of right now, but doesn't seem to be doing anything musical at the moment....

Noria-  Released a hit single this year

Miharu/Aya-

Risa/Alice-

Yoma/Nao- Isn't she a fashion designer now?

And I don't know about the 3 girls from BeForU 2008.

Any info you guys know, let's add it in here.  I don't want to lose track of these girls.

Well, regarding Sayaka, I'm not sure if that's exactly news for this year.  Just because we discovered her identity this year doesn't mean that she made the change at around the same time.  But yeah, that's just a technicality.  EDIT: oh yeah, Hatsukoi pointed out in another thread that this indeed is new.

As for the new members of BeForU 2008, here are their Japanese wiki sites:
megumi
ayano
hiromi

From just looking at the years, it seems like each are doing a little of something or other.

Heck, this link should be helpful for updates of any of the other members too.  I'm just a little lazy right now to try deciphering things through translators.

Riyu: has left avex and BeForU(?). Is now under 5pb, which I think is much better for her.  Hopefully she keeps releasing more material!

An addition to Noria's update: she sang the opening for 3sisters anime and Hitomi no Kotae which was the ED theme for 07Ghost,  as you mentioned.  Also she wrote lyrics for some songs of other artists and anime opening and endings.
『GA芸術科アートデザインクラス』
OP「お先にシルブプレ」
ED「Coloring palettes」

Miharu/AYA currently does some type of radio shows and webtv?  I follow her on twitter and she's always posting links to livestreams but I could never figure out how to work it xD

I believe Risa does the same thing as well.  She has acted in a few live plays but nothing major/mainstream.  I'm going to assume she's never putting out a solo album 

Yoma just put out another single this year and held a live not too long ago.  Noria attended and posted on her blog <Click me

SAYA, my favorite member, is now Ako Tojo as you said.  She has joined KunoichiTV which is a  talent agency which helps "girls achieve their dreams"  She currently models, I don't think anything mainstream...(?) and released a gravure DVD.  So everyone that says she left BeForU because she didn't want to be exploited by the new "mature" image e.... nyaaa!

Sooo, where is Shiyuna? haha, I kid.

Kinda off topic: so wait, what is Emi's (from kosumosu) real name??

Wasn't it Emi Tojo?