Celebrity Solstice was, at 122,000 GT, the largest ship to be built at a German shipyard, but this record was surpassed by the Disney Dream, a 128,000 GT cruise ship of the Disney Cruise Line.
Languages can definitely change and they can diverge. For example, Latin split up into the modern Romance languages: Portuguese, Spanish, Romanian, Galician, etc. This is less known, but languages can also converge: those languages are called creole. Some people argue that English is also similar to a creole: a mix of Germanic and French.
The question of what happens to the first language of a bilingual speaker or a migrant is the other side of this coin, and we might expect that the factors which influence eventual success in foreign language learning may also have an impact on first language main-tenance or attrition (e.g. Ben Rafael & Schmid 2007).