Regardless of the wings the bomb bay could carry many weapon types without any stability issues. This thread covered it earlier this year
http://www.pprune.org/military-aircr...-platform.html
We do need to replace harpoon though, it's capability against any modern warship must be quite poor when compared to other systems. Joint Strike Missile for example will be multi role, available soon, much more effective and you could probably fit a few in the MRA4 bomb bay if it's designed to fit in the F-35 weapon bay. Anyone know if the Navy are looking to replace ship launched Harpoon, if so with what?