The Kris top is a summer essential for me.
In a fine cotton, it is much cooler than a t-shirt and just as comfortable because it is cut on the bias. In retrospect, it was a pity to only wear it is Summer.
My thoughts were..
A longer sleeve would give it the possibility to become a blouse "Ersatz", substitute.
However, depending on the fabric width , long sleeves on the bias can be fabric hungry.
This is why there is a seam in the long sleeve version of the raglan reach sleeve we made for the Kris. Here is the link
This layout below is a size 6. The cloth would be folded along the diagonal grain; all of the pieces cut; except the chaos collar pieces which would be cut when the fold is no longer needed.
Because there is a seam in the bias sleeve, this top can be cut from 1.44cm square. That is pretty good for a long sleeved top.
If you have plenty of fabric and/or are canny enough to lay out your pattern pieces individually it is possible overlap the seam allowances of the top and bottom sleeve pieces to use as a single piece. This possibility is included in the instructions.
This detail is also a reminder that you can join cloth on the straight grain if you want to cut a large bias piece out of limited fabric.
This technique might also come in handy for the long sleeved Knitter top and Knitter dress