The Magpies are looking likely to be relegated unless they can drastically turn around their form.
The winger joined the club in the January transfer window in a move from Tottenham Hotspur.
It has not been an ideal time for him so far, with his side looking destined for relegation to the Championship unless they can drastically turn things around.
If the Magpies do suffer relegation, there would likely be a fire sale of some of their bigger stars, with Townsend one that could leave.
And Pleat says he could be a secure a return to the Premier League, but only if he can play more to his strengths.
"We've seen him do it for England, we've seen him do it for Tottenham,” he told BBC Sport.
“I quite like Andros Townsend but he can be an erratic player. If he only plays to his strengths more then I think he would be a good player for a Premier League club if Newcastle go down."
If Newcastle United are relegated, there is no denying that several stars could all exit the club in the summer transfer window.
A problem for them will be recuperating some of the big fees they have paid in the last two windows, with few clubs likely to be keen to pay big for their players.
There is talent in the squad to be had though, and it is likely Premier League clubs are already eyeing up potential targets in the event of relegation for the Magpies.