Glad that you appreciate my feedback. I'm thinking aloud on this thread for myself too. I have a fairly similar blazer. Mine is somewhat shorter in the midsection though, which is a good thing for me, as I'm short waisted. I think that I would wear mine more if I had the zippers on the front pockets like yours. I think zippers makes it more edgy and less traditional blazer looking.
I've been in a bit of a style rut with mine. Just wearing them with traditional woolen straight leg medium width trousers and mostly with bright merino turtleneck or pullovers from BR.
I'm thinking that this is the year to mix things up for my style. I got some deep red and deep teal heavy warm fabric tapered leg full length trousers at the end of last winter, around March. I felt like it was my last chance to find something not cropped until late in the fall of 2017. Anyway, your post got me thinking that, for myself, I need to prioritize wearing the blazer with my colored pants this year, and I too might be in the market for additional tops to wear under the blazer. So, if you do purchase tops to go underneath, I would definitely be interested to see them. Thanks for sharing your experience.