Things I grew last year that will not be in the garden this year:
Tomatillos (they just don't yield well for me, and are easy to find/inexpensive when I do need them)
I am going to grow less of the various Asian greens than last year - we couldn't keep up and many of them bolted when it turned hot (which happens earlier and earlier for me)
Cucumber Poona Kheera and Salt and Pepper - neither yielded well for me (and Diva is so, so, so good!)
My friend Jeff (one of the main Seed Savers Exchange lettuce folks) already sent me about 20 new types, so my lettuce planting will include a lot of new types
I may add a white fleshed beet - last year had a mix of the red and golden beets and Chioggia (which may go....)
I will likely add a dry bean (probably a Black Bean) because we eat so many and it would be fun to grow.
Tomatoes, peppers and eggplant - this is the hardest for me to figure out because I've got so many different little projects going...and so much seed.