Question? Are you a solitary hiker? Do you ever want to go on snow? Need Ice axe and tent with an awning then.
Guys here have said you can save weight on stove, pot, and shelter. This is only true if you never plan on having anyone else along on your trips. I don't know about you, but this gets darned lonely if done all the time. I will note that nearly ALL PCT/ACT hikers hike in "loose" groups even though they all carry Ultra light gear. IF they wanted truly ultralight half their shelters cooking gear aren't really needed. Get a buddy before going, and you drop your weight by a pound each just by joining up with someone else!
Personally, I never buy a tent or basic stuff that is good for ONLY, ME, MYSELF, and I. Damned lonely. To each his own. Ultimate lightweight is a tarp/hiking poles/rocks/guylines, and groundsheet. Oi! The bugs!
Now if you have money burning a hole in your pocket and hike by yourself all the time, sure get a new pack, tent, and smaller/lighter cooking gear. Though I have to disagree about getting rid of the R1 Patagonia pull over. Its too tough and versatile. There comes a point where weight doesn't matter, but rather durability does matter.
I have found that anytime I am NOT hiking by myself, I need those heavier packs, that larger tent, and that heavier larger cooking gear. If you really want to talk weight savings, camping with two people saves weight. 1 larger pack and 1 UL pack sack. Switch between people every other couple hours. 1 Tent for 2 is lighter, and 1 cooking set instead of 2 is lighter.
You will find, well I have found, that cooking for 2 or more, is impossible with super light alcohol stoves/pots. Need a larger Alchohol stove. Now, its probably me not being aware of such a stove in the first place. I carry white gas/gasoline stove. Also need a larger pot. Besides I like real food, not reconstituted garbage sold in your typical store for 5 million dollars. This takes a larger pot as I am not just heating water! Last I checked nearly every last one of said packages sell pasta and dried seasonings at say REI, Marmot, etc, don't know about you, but I can buy pasta and dried seasonings in my local store for 1/4 the price good for more people. Just an FYI in case you didn't already know that. Most don't.