As a cow, I think they should, and concentrate fully on the PS4.
I think they might have already, as the only 1st party game coming out are Tearaway and Gravity Rush 2.
3rd party has also already abandoned it, no major games coming...
It's a good system but people rather get smartphones and tablets and 3DS is just dominating the handheld market.
With no sales there'll be no games and the system will die soon. What a shame because it had so much potential, but maybe it's for the better.