This article may be helpful to give you some food for thought http://www.madaboutthehouse.com/how-to-get-kitchen-lighting-right-the-kitchen/. I tend to like a pendant over the dining table too, maybe a light like the flos string would allow you the flexibility to install a light which could be moved.

I would be inclined to use a mix of lighting provision, from pendants where you plan to locate the dining table plus over the island to wall uplighters, spots in 2-3 clusters and unit lighting. Ensure switches at at each door entry point and lights can be controlled individually in their respective zones.

I would always recommend if the budget allows consulting with a lighting designer to get the most out of the space; I would highly recommend Sam Coles who you can find on Houzz.

Although not directly related to light fittings, have you considered other aspects to the renovation such as lighting control, music systems?

Great article above, it gives few helpful tips also mentioned by JLM Architecture Limited. It really come down to personal preferences and needs, and consulting a professional will give you the best results.

We would love to see the ens result.