For a rising 3rd grader, I would not do anything more than you have planned. I think that is plenty but it depends on the child I guess.
My rising 4th grader does like workbooks to a point, so I buy the cheap ones at Sam’s Club and let him do the language arts section as free work. I will go in and rip out a page here and there that I don’t really like the content or don’t see any benefit. We usually do ILL orally for the most part, though some lessons I have him write it out. Just depends but more often than not, he does these with me orally.
For handwriting this past year, I put together a cursive handwriting book for him that he loved and I loved. I was able to use the same one for my 12YO son (that I mentioned above) b/c it was a PDF I downloaded and the publisher gives each family rights to print as many times as you like for your family.
http://www.currclick.com/product/21168/A-Z-Crawly-Critters-Cursive-Penmanship?it=1
I printed ours in b/w and had the spiral binding done at fedex office. My 12YO and 9YO boys have loved using these this year. I am looking actually at another one from the same publisher as their cursive is looking better but more practice would not be bad either.