As lately the company has issues about smartphone sellings and compete with Android and iOs I had an idea to make current (and hopefully long living) Symbian smartphones better.
As far as I know there is an ongoing development at SPB Software called Shell 5 or Shell 3D. It is a realy useful tool to make symbian experience to a much higher level. Nokia should discuss with SPB Sofware to make this new shell integrated to Symbian^3 makeing everyone pleased.
Customers could get a new GUI for their devices which is at least as good or even better than Android or iOS.
SPB Software could get money after every sold Symbian^3 device (for example $5 on each device included in sell price).
Nokia would have a quick upgrade for their smartphones and could sell more devices then currently and get back to the top.