I think the problem with Eastenders is partly it being stuck with 'old family values', combined with bad script writing (the 9/11 episode, particularly) and its loss of touch with reality.
I think there's the potential for many kinds of storylines.
*it would be nice to see male victims of domestic abuse, or rape etc. for once to show the other side. They always have women as the victims.
*homosexuality - sorry to any homophobes, but it is much more accepted than it used to be, they can get civil parnerships. Having 'the token gay character' like Derek is not good enough, not when you can explore other issues such as coming to terms with sexuality, homophobia, relationships etc.
*im sorry, but not all teenagers are chavs! It would be nice to see some teenagers who are actually slightly alternative. Fair dos for Corrie on their goth phase storyline but come on! Hollyoaks seems to handle it better.
*mental illness/depression - they have Jean, but they really haven't explored it as much as they can do. The Joe Wicks storyline was brilliant, if they could grasp some of that creativity, then great. Although the rate Eastenders is going, everyone should be on Prozac.
*humor - eastenders currently doesn't have the same sort of variety of humor and drama that soaps like emmerdale and corrie have. Sometimes good things do happen to people!