Detail #133: A Reused Thing from Germanic

Consider how Germanic languages (and some other languages, for that matter) deal with impersonal constructions:

it rains

it's late

it's clear now that the plan couldn't have worked

it kept getting colder outside

Germanic languages that have V2 (and English, that had V2 once) might have come up with having a dummy pronoun there so that the verb could remain the second constituent of a clause. Now, other languages of western Europe also have gone through stages of V2 (French and Spanish, for instance). I do not know how other V2 languages deal with it, nor am I aware of to what extent dummy pronouns appear in other kinds of languages except by influence from V2 languages (i.e. many Finnish dialects have 'se sataa' instead of standard 'sataa' for '(it) rains').

How about having a variety of dummy pronouns from different genders in a more Bantu-like gender system, and having these be lexically determined by the verb or by the construction used?