Accent?

We are doing four languages with our toddler who seems fairly advanced (13 words at 12 months and is attempting 3-4 word sentences at 16 months now).

Dad is doing French primarily with some Arabic. Mom is doing Urdu and English. Mom grew up in North America and has a relatively North American English accent, yet the toddler’s English (community language and the family language) has an Urdu sounding accent? For example, the toddler mixes up V and W (all W words are with V). Neither parent does this…Also words like “again” are being pronounced as ag-gain (with a very heavy Urdu sounding G). Will this be outgrown as speech becomes clearer with time, or is this a different issue?