Well, keep your fingers crossed this patch does what it's supposed to - because I get the feeling a lot of our strategies and play styles will have to change when it arrives. The most notable improvements to the gameplay are going to be in the overall balance of the game. Each faction will have minor tweaks and adjustments (as laid out in a blog post a few days ago) that will provide cheaper or more expensive units. The one that I'm a little skeptical of is the cost reduction of the Cybran Scathis. That thing seems so brutal that I'm surprised they're tweaking it. However, it sounds like they're also going to up the armor on it as well, which means a double win in my book. We'll see.
Also, there are (rumored to be) significant improvements in the targeting priorities of certain units, especially air defense. No longer will bombers be able to fly in on a shield of fighters and scouts - apparently the new AA functions will prioritize bombers, gunships, and transports first, and fighters and scouts will be a lesser responsibility.
I'll make sure when Wednesday comes around to snag the patch as soon as possible, play a few times, and see what I notice right away to be different.
For the time being, enjoy your last weekend of unbalanced gameplay!
Cheers,
Dave