I do agree it's lacking direction at the moment, but I don't know whether it's the transition between EPs or what.
The Mitchells and Beales are the main families on the Square and are iconic - they have mix of characters and some highly capable actors. It's only right they are the focus as they have had a lot of happen, and we know we'll get powerhouse performances from Adam Woodyatt and Steve McFadden.
I do agree that stories begin...then get swept under the carpet. This with Belinda and the beauty salon - she'll annoy most of the Square then it will go. The same with this Ronnie and Andy storyline - it has a point, then peters out. Plus add to the fact characters disappear for weeks on end, then pop-up again. Bloc-storytelling has damaged the show.
I think the fact as well as Paul's death/Ben's disapperance, we're seeing it hijacked almost with the Carters again. I like Mick, I like Linda, I do like Babe as we need a baddy on the show, and I love Shirley as she's funny - but their kids.....Johnny should never have returned and NuJohnny is a poor actor. Lee is a drip and Tina is boring. Nancy was the only one of their older kids who had something to offer. I do echo Zsa Zsa should have come back - bought Tina out a little bit and got her out of the shell. Whitney has had the life sucked out of her since being with Lee, and who gives a crap about Lauren/Whitney/Abi. I hope for our sake the Dona baby storyline doesn't come back.
i'm worried Stacey, Martin and Kyle are just going to be in the background and will be secondary characters - shame as all of them are strong actors and have good characters that are multi-layered. I'd like the relationship with Kyle and Stacey explored a bit more.
The Hubbards - when is Claudette's revenge going to happen? I feel they don't serve a purpose anymore. I am sad the Cokers are going - granted Pam is a bit of a strange one, but the cross-dressing storyline has been handled well and I would want Claudette to get back at Babe.
Masood - bring Zainab back or move Bushra and her family into the Square

That would be a lot of fun. The Kazemis - ditch Shakil and send him back to his Dad. Kush and Carmel have a lot to offer. Also use some of the older characters - granted June Brown is limited at the moment, but give Patrick a bit more of a purpose and bring Cora back, even Aunt Sal living with Ronnie.
I think they need storylines to engage people, stop the Carter over-use and let storylines follow-up.
Sorry I've rambled