No improvement from what my clan has experienced
Just finished up a 10v10 war against a Chinese clan. Our breakdown 2/4/4. Their breakdown 8/0/2. Us = 4 warden hits. Them = 16 warden hits. Our #6, brand new th10 with no infernos and 30/30 heroes. Their #6, th11 with max heroes (including warden) but no eagle or infernos. Our th11s both have eagles. They only had 1 eagle. Three of their th11s had max heroes, and the rest had mid-range heroes. All their th11s had maxed lavas and/or bowlers. Most had max golems and valks. I'm just about done putting time and money into this game. I don't mind losing, but I would at least prefer a fair matchup. Can't say that I have seen any improvement in war matchmaking.