I have a 4th grader, but she was into all this last year and still is (and her friends are, too). For toys -
Lego Friends, Barbie, Enchantimals, Squishies, Shopkins (little critters and also the dolls), Num Noms, Mini Mixies, Hatchimals, Littlest Pet Shop, and blind bag stuff like Pikmi pops, LOL dolls, Hatchimals, Num Noms, etc. Shopkins and Num Noms have playsets she likes. (The HOT items this year with her and her friends are Squishies, Pikmi Pops, and LOL dolls). This year she asked for board games like Yeti in My Spaghetti and Soggy Doggy. She loves coloring books and colored pencils but she likes the "adult" complicated ones.
For clothes, she moved into a size L (10/12) in 3rd. She does not like character clothes, but that's just her. She loves cute slippers and thick fuzzy socks and wore a size 3 last year, but every kid is going to be different.