I’m hearing that Instagram pictures are going to be bigger. The nw size for pictures will now be 1080 x 1080. Verge first reported this.
To uncover your own 1080px photos, use a desktop browser like Chrome or Firefox to open up an Instagram photo page’s source HTML code, then search for “.jpg” within it. The first result should be the URL to the larger version of the picture.
So expect to start seeing this very soon.