Remember: Rtn was a parallel universe that paralleled canon events and was built upon canon events ergo NaruSaku awesomeness.
From what it looks, The Last is based on the same skeleton while with different concepts from all the Naruto franchise up to now patched together that parallel canon manga only this time seemingly it focuses on Hinata's selfish/single-minded love and seemingly contradicts all the manga which means IT which means ergo NaruSaku awesomeness at the end like in RTN and like in the manga up to 699 ;).
Remember, Kishi had the same ending in mind for 8 years, only 3 months ago when he decided to write 700 he made some modifications. ;)