I thought so when FFS was released, but then BBHMM dropped and while I love this song, it brings nothing new to the table. And then American Oxygen easily one of her worst songs: repetitive, uninspired, sloppy. Her nonchalant attitude towards this era isn't helping either. I still have hope for R8 though because of the great snippets, especially Higher (if done right, it can end up her best song yet).
It may not be a commercial success, but I can see it garnering critical acclaim. It shouldn't be compared to Artpop for that reason. The latter was both a commercial and critical failure.