I'd fire that kitchen design person lol. No such thing as a corner pantry being outdated. I would bet she is new to the biz and has no real clue. If you have the space, then go for it. I have a closet in my kitchen that is considered a pantry, but kinda wish it was just a large floor to ceiling cabinet. I have a base and wall corner cabinet that I started to use for mostly canned and dry foods and it works much better because it's closer to my stove. Whatever works for you the way you use your kitchen would be the way to go :)

Lighting - pendants over the servery bench should be another feature that complements your chosen kitchen surfaces. So whilst I love the copper pendants in picture 1.. They could work depending on the rest of your decor and would be a highlight in a neutral white/timber kitchen = Good! If you choose copper you would complement it with a couple of copper bench top items. These are beautiful! (I collect copper because I love it, my kitchen pendants are silver, I renovated to sell in the next 3-5 years) You will see a picture starting to form in your mind and there is nothing wrong with making a statement with your lighting. I found that when I wasn't sure I would get a very strong sense of what was right and what was wrong for a space, then common sense or passion would determine the outcome! Here are another couple that might work, look her on Houzz under lighting, search pendants, then have fun looking!Timber tones with black or white to complement your cabinets... or Statement white pendants for a bit of quirky fun! Your personality can be reflected in your lighting and accessories creating that point of difference from the predictable white on timber look. Plus don't forget the power of greenery to punctuate the theme!

When I was looking at systems for the kitchen that I have just put in nearly everyone told me to keep away from pull out pantry if for general use. The reason being that get too heavy and do not work properly. I have underbench pull outs for oils and spices etc. and that works well but you can feel the weight in it. All of my food items except opened bottles are in drawers including cans point their sides and I am very happy with how it functions. I do not have any pantry.

A very simple layout keeping the floor space within the kitchen, the WIP takes up a lot of space with not much gain, The broom cupboard could be moved to the Laundry/entrance, narrow. If the wall has been bumped out to the eaves on the deck side giving an extra 300 depth to the kitchen you could make the island 2700 x 1200 and all drawers. The wall of narrow pantry will hold all pantry needs and more, no deep cupboards to dig into. cheers