Agreed. If Studio Pierrot and Kishimoto truly wanted to offer an olive branch to the NaruSaku and neutral fans that were upset by the original ending, they would need to do as CrimsonFox, Legend054, and Nate suggested - offer an alternative ending that addressed the failings of the original, and did justice to the characters.
There are a couple of problems with the possibility of going NaruSaku in the Boruto manga.
Firstly, Kishimoto and Studio Pierrot went out of their way to deny that there was ever any romantic development between Naruto and Sakura, despite the fact that Kishimoto himself emphasised the deepening feelings between the two characters in the manga several times. Kishimoto even claimed that NaruSaku was "a red herring", despite NaruHina and SasuSaku having pretty much zero mutual build-up.
So, why would they then add in NaruSaku moments after going out of their way to sweep the pairing under the carpet - even going as far as to retcon the manga? If they wanted to develop the pairing in the Borutoverse, they would only anger the NaruHina/SasuSaku fans. If they just wanted to bait NaruSaku fans into reading/watching Boruto, then fans would think Studio Pierrot and Kishimoto were being just plain cruel. The NaruSaku fans have been through more than enough.
Secondly, if they did make NaruSaku canon in the Borutoverse at the expense of NaruHina/SasuSaku, the resulting fallout would make the storm surrounding the original ending look like a minor scuffle in a playground. There would be flame wars everywhere, and I can just see people hurling abuse at Naruto and Sakura for being heartless homewreckers. It also wouldn't be in their characters; even if they did deeply love each other, they would not abandon their own families.
That's why I highly doubt there will be any NaruSaku development in Boruto. The only way Studio Pierrot and Kishimoto could try to pull it off, would be to offer a spin-off of Naruto that shows an alternate reality - one where the original ending never happened. Then they could be free to develop NaruSaku, and to try and develop the characters in a way that mended the failings of the original manga. By offering both the original and revised realities, you could retain the NaruHina/SasuSaku fans with Boruto, and offer an alternative to people who didn't like the original ending and New Era Project.
Unfortunately, that would cost Studio Pierrot and Shonen Jump time and money, and I doubt that they would be willing to spend time and effort trying an experiment that has no guarantee of bringing back a large number of disillusioned fans. Even if the New Era Project was hemorrhaging fans, it would be simpler for Studio Pierrot to keep beating the dead donkey with fillers until they got all the yen they could out of it, then close up the franchise and move on to something else.
I would love to see NaruSaku return and to see characters restored to who they really were, but it's been 1.5 years since the ending. It's not likely to happen.