The metaprogramming available in languages like Rust and C++ could maybe be leveraged to make the struct-of-arrays model easier. Wouldn't be the same as native support, though.
Julia has a package that provides incredibility easy to use SoA. https://github.com/JuliaArrays/StructArrays.jl Julia's metaprogramming and multiple dispatch mean that it can use user structs fully transparently. Everything just works.
