Grealish has missed nine straight Premier League matches with a shin injury and is definitely out of Sunday’s derby against Albion.
But the 25-year-old hopes to take a significant step on the road to recovery should the scan confirm he is ready to resume full training.
Even then it might still be another fortnight until he is ready to make a Premier League return, though boss Dean Smith remains adamant the England international will be ready for Euro 2020.
“There's not really a timeline (on his injury) as such,” said Smith. “He's due to have a scan next week.
“Hopefully that clears it up and we go full board with training. We'll be guided by the time and the medical practitioners. I have no doubts he'll be OK for the Euros.”
Striker Wesley could make his return after nearly 16 months out when Villa host the Baggies.
Smith will decide on Saturday whether the £21million striker is ready to be included in the matchday squad following his recovery from a serious knee injury.
Wesley has been sidelined since tearing ligaments in a 2-1 win at Burnley on New Year’s Day 2020 and Smith yesterday described the injury as the most significant he had ever seen.
“It has been really tough. It shows the strength of character for him to come back from it.
“During the pandemic it has been tough as we have not been able to arrange the kind of games we usually would for someone coming back from injury.
“We have had to improvise a little bit but he is certainly a willing lad and everyone will be pleased to see him back.”