I haven't heard anything about a Tamako Love Story 2. Usually, if there were plans for a sequel, there would be some buzz or official news, but there's been none so far.
Tamako is the main character. She is a cheerful girl who helps in her family's mochi shop. Mochizou is also important. He has a long - standing relationship with Tamako and has feelings for her.
Well, in Tamako Market and Tamako Love Story, the theme of community is quite prominent. The market serves as a community where everyone has their own role and they interact with each other. Youth and growing up is also a theme. Tamako is at an age where she's starting to figure out her feelings, especially in Tamako Love Story when it comes to romantic feelings towards Mochizou. And of course, there's the theme of tradition, with the family's mochi - making business being a long - held tradition.
The main difference is the focus of the story. Tamako Market is more about the daily life of the characters in the market, while Tamako Love Story is centered on the romantic development of Tamako.
It's best to watch Tamako Market before Tamako Love Story. The plot and character development in Tamako Market lead into Tamako Love Story, making it more meaningful and enjoyable when watched sequentially.