"it will" should be plural in German, because it is two people, you AND I. Thus the translation should be: "es werden immer du und ich sein". Also, I think that "my love" is better translated with "mein Liebling".
Just a small remark. Despite the fact that according to the new german orthography rules (neue Rechtschreibung) all nominalizations (use of verbs, adjectives etc. as nouns) must be capitalised (groß geschrieben), this rule does not apply when you are using an adverb as noun (according to the "Duden, die deutsche Rechtsschreibung" ) "
"andere" is an adverb therefore, it will be always written uncapitalized (klein geschrieben) no matter if it is preceded by "der", "die" or "das" or any other word that should nominalize it (as for example here the word "alles" ).
So "mehr als alles Andere" should actually be written as "mehr als alles andere"
If you have the "Duden, die deutsche Rechtsschreibung" you can find this information on page 182
It is in my opinion just a small detail, so I did not want to vote "false" just for something that can be corrected pretty fast