Some observations after I patched the game (Note: was on my 6th playthrough at Kiln of the Flame).
1. Maybe it was because I was a Sunbro, but I must have been summoned by at LEAST 6 people, doing their first Gywn match! Very fun, but I felt like I carried two to victory.
2. I didn't know this, but going to do Onionbro's quest, I killed the bug at the shortcut again, with about 3 humanity...and they drop SUN MEDALS (as well as the occasional red titanite chunk). Very cool, but sadly, this did not fix Solaire's already 'broken path (for this playthrough).
3. Iron flesh is ABSOLUTELY useless..=/ I shall miss it. I mean I did a test on Gywn with, and without it on..and the defense difference is very minimal at my level.
4. After I finished, and went through my game, to check out what else was changed, I notice some were changed around (actually very nice the way some soliders are 'spread out' such as the 'Drake bridge'), and a few drop more souls, but not much more.
5. The ghost are worth some good amount of souls! Yay!
6. When in human form I counted, on average, about...two to three signs on the ground at even my level (I am near 215 mind you), and I finally see red signs too! Nice to have a 'gentlemanly' invasion.
Now, on my secondary character, who is barely a level 30, I had no issues finding at least a dozen signs or more for co-op, on things like Chiva-demon (lol) and Gaping, and even navigating Blighttown. Framerate is ok...much better in areas, but still slow to me.
Will report on more information as I find out. Oh, maybe it is because of the patch, but I did see more of those 'dropped items' enemies pop-up; 'vagrants' or whatever....