I am not sure of the price after waves-NG release but I think it would have double of what it had at the moment. Price might also go to the moon and if that happens we might see price 4X to 10X more of what it has now, maybe more considering it will be one of the fastest ever block chain in existence in the current time after waves-NG is released. Also, I think the probability of price going down steadily long term is below 1% and investing on it would be a wise move.