The kitchen in Kris' house shows all of the Undertale Areas! The stairs are Ruins, the fridge is Snowdin, the sink is Waterfall, the stove is Hotland, the microwave is CORE, and the trash can is New Home (Asgore's flowers are in there)!

There are seven areas (including True Lab), and New Home was where the king was, and chapter 1 had a King! Chapter 2 would match up to CORE if we were following this backwards order, and what do you know, it has a Mettaton copycat and is technology themed! This gets you thinking, will Chapter 3 be True Lab inspired? It might fit, as Chapter 3 could have a Flowey reference, and True Lab is where Flowey was created! This is the most insane theory ever, but it might be true! (Not to mention that the True Lab has TVs..)