The 20-year-old FC Differdange winger is due in the country for talks with the club today about a permanent move to the Reebok.
Right-sided midfielder Bastos has four full caps made his international debut against Russia last year.
He also scored to help the Luxembourg club beat Dutch side FC Utrecht in the Europa League earlier this season.
Wanderers are working hard to boost their squad ahead of this weekend’s FA Cup fourth round clash with Cardiff City and are also in negotiations with Sunderland about a loan move for Danny Graham.