The issue here is this, Impure used a Gen 2/Gen 3 model whereas if you want to compete with the "big Guys" so to say, you would need to use Gen 8 (Like I do). So with that comes an issue, Sarah will not look like she did in Impure's edition.
Further more, the market is (Almost) over saturated with cheating wife games, so you would need to create something very unique to compete with them (However, if you just want to remake Sarah's Life for the sake of it, not caring about the market aspect of it, by all means).
With that said... I am working on the remake. It will have a different story, however, the characters (The key ones atleast) will be the same. I am currently working with someone who is American and will help me with the American English (I myself is not English/American). I am also staying true to the shape of Sarah and how she looked. So she will be thicc... In the way Jessica Simpson was in Dukes of Hazzard.
I am not trying to rain on anybody's parade here, and if Geekbone wants to do it instead of me, thats fine. I will just remake my character slightly and rename her.
The reason for me saying all of this is that it would be very tragic if someone chooses to do this, and it does not go well, which prompts them to not want to continue. I am confident that one of the reasons Impure stopped working on his game, was because of the emergence of Nickfifa (Nothing against him whatsoever, just saying that Impure did in his game make a comment about Elena's Life), and also all the people complaining about how he only had ugly dudes in his game (Something I get thrown at me as well).
TL;DR
Sarah will not look identical to Impures Sarah due to graphic constraints, and it is very tricky to make this game if you want to enter the market. If someone does this game not caring to make money, please show them all the support they can get and be very nice