Hi Dawn!
Yes! As they say in the Princess and the Frog, you're "Almost There!"
For me personally, since the fireworks for Wishes shoot right behind Cinderella's Castle, anywhere right in front of the castle is a good viewing spot. If you're facing the castle, there was an overhead area southeast of the castle I sat with some of my panel friends, and it was the perfect sitting area to see Wishes by far!
At Mickey's Very Merry Christmas Party, near the front of Main Street, by, perhaps, the Disney Emporium is a perfect spot to view the parade. It's also one of the buildings where snow shoots from the rooftops, making Main Street feel like a "Winter Wonderland."
Have fun! We hope we were able to make that vacation extra special for you...