I agree with you on Mania, it looks quite promising. As for Project Sonic 2017, there isn't enough content to judge it, like you said; however, I'm also thinking about the possibility of multiple playable characters. As for voice acting, I more or less doubt how Smith could try to pull off a serious Sonic, as I honestly wouldn't find it as believable. Like, his voice is more towards comedy. But hey, to each their own, okay? So far, those are my opinions.