Well there is no evidence of it as such, but there are quite a few points that would be foreshadowing for that revelation.
First there is Bella putting her foot in her mouth with the "Didn't your mother teach you..." Bella knowing Lynette would add a layer of irony to that moment especially if they were close enough that Bella might consider it her duty to teach him such things in Lynette's stead.
Second there is the picture of Maya, Derek and their friend Lynn (note the similarity of the name) (HINT! HINT!) which turned out to have been taken by Josy. Now there is a picture of Lynette, Miranda and Viv. Who will turn out to have taken that picture? Well one of our MGs is in that age group: Bella.
Third while hanging out with her after the double tennis match MC tells Bella about his mother's diary. Bella is very encouraging about him finding out about his mother and offers to listen to him if he needs to talk about it. None of the other four have made such an offer. If such a moment had come and Bella didn't recognise the handwriting or react to the name Lynette it would prove the theory false, but the only two characters who have actually read the diary apart from MC himself are Derek and Zoey. We have been hammered on the head with the "Jill lives in Lynette's old house" detail to the point of being frustrated that MC never looks at the two pictures at the same time and notices they have the same house, but the only MG on whose path the diary itself is even slightly significant is Bella.
Fourth we have the skiing trip. Miranda's and Bianca's likeness has everyone suspecting they are mother and daughter so on Jill's path it's yet another moment bringing MC closer to the "Jill's parents live in the house MC's mother used to live in" revelation. Bella joining the trip is not surprising on Jill's path. What is surprising is getting the event on Bella's path as well. Especially when Jill and Bella have a falling out on Bella's path that needs to be mended for it. And it is not optional. So on Bella's path we get a connection to Bianca who is connected to Miranda who is connected to Lynette. To cement the idea that this event is connected to Lynette MC decides to channel his mom and does a monkey pose in the picture they take.
Lastly while not foreshadowing as such we have the mystery of how Bella and Jill became friends in the first place. But suppose one day Bella felt nostalgic and decided to take a look at the places where she used to hang out with her friends including Lynette's old house. She didn't of course actually plan to enter the property, but she did run to Amelia and felt the need to explain that a friend of hers had once lived in the house. Amelia decided to invite her in and that's how Bella and Jill met. At B&R it became a habit for Jill to confide in Bella and here we are.