Striker Simpson is on loan at the Baggies until the end of the campaign, and has so far netted two goals for the club.
The 20-year-old is fully focused on ensuring West Brom avoid relegation, but sees his time in the Midlands as an ideal stepping stone to becoming a senior member of the first-team at Arsenal.
Simpson said in the Daily Mirror: "I want to help keep Albion up and then go back to Arsenal.
"I think it is about time the English players came through and I think the Arsenal fans want it as well.
"There are a lot of talented English youngsters at Arsenal and if you are good enough you are going to play.
"Hopefully we can make the grade and for me personally it has gone really well at West Brom. I believe I can contribute a lot to keep us up and I am enjoying it.
"I think at Arsenal in a way you are pampered but when you go out on loan it is the real world. My loan spell last year helped me grow up into a man."