The Jackpot adjustment: fine by me, though at the same time, I didn't have a problem with how it worked before. At least people can get paid off if they call a letter that appears a bunch when they do land on it. I heard rumors about this change a little while back, and thought the same then.
This "Wild Card" wedge is new to me. Personally, my jury is still out, I'll have to wait to see how it works on the TV. From a very preliminary standpoint, seeing how thick most of the people on Wheel are now, I wouldn't be surprised if the entire concept simply eludes them, or, they don't realize the maximum potential it could hold. I'm also getting images of people landing on it and immediately start calling out 2 letters right then, or a person who calls out two letters while holding it, but then says, "Oh, I thought I could always call two letters with it." That'll make for a sloppy editing job...
Also, I believe having the opportunity to pick 5 letters total in the bonus round is too much. If they're playing for up to $100,000, MAKE THEM EARN IT! Some puzzles I think will now be WAY too easy with an extra letter thrown in. There is no reason why I think one of the best basic formats for a bonus round in TV history had to be fiddled with AT ALL at this point, especially with them bringing the concept of a "Wheel of Fortune" into the bonus round like they did (and I thought should have some time ago)...
One of the reasons I've loved WOF is its simplicity: Hangman, one spin, one consonant, vowels if you need them, spin again... The "Wild Card" seems to overcomplicate things. Maybe my thought will change when I see it in action. Now, if they brought 3 day champions or the Friday Finals back, then I would stand up and applaud. But, I'm beating a dead horse with that thought, at this point...