If you were doing a new kitchen I would suggest running it along the wall where the numbers 7, 8, 9, 10 and 11 are but take it all the way along that wall (fridge in the space beside 11 so people can get to the fridge without walking the length of what would become a galley kitchen).
Then I would start where cupboard 4 is and do a parallel run of bench, finishing about where the fridge is sitting now. I would not put anything where 5 is now but maybe push a narrow pantry into the wall cavity so it is not just a wasted wall. You could do a U shape kitchen with the end of the U where No 5 is but that makes two wasted corners and straight runs into the wall is a better trade off. You could hinge an extra bit of bench off that end wall if/when you need it.
That would give you a nice area for a table next to the kitchen and not encroach on the lounge area.
However, in view of the fact that I've previously said "don't touch the kitchen" I think that in the short term you should get a small oval table that might fit in the space next to the kitchen. It looks like it could be 3m wide which just might be too small to work unless you choose the table very carefully. Maybe a bench seat backing on the wall near the door (make it a slider or remove it?), a narrow bench style table and another bench seat or two chairs on the kitchen side.
I cannot imagine not having a kitchen table. Ours is not in our kitchen but just off to the side and we also have a formal dining table. If I was designing our house now (we bought it so "inherited" the "formal" area) I would not have two dining tables, but couldn't imagine having ONLY a kitchen island bench. If you have visitors where would they eat?
I would make this layout work for you until you have lived there for a while at least. Until you live in a place, it is sometimes hard to work out what you need.
Edit: I did a lovely little plan on the back of an envelope but cannot seem to upload it. If you want to see it, I'll try later in the day. With a galley style kitchen using 60cm bench, 1000cm wide work area and another 60cm bench you gain some space from the area next to the kitchen where you could put a dining table and chairs. We work in a similar style kitchen with 800cm working space. It works well for two of us but when we had five of us trying to work in the kitchen, it was not so good. One metre would be minimum I reckon.
