There have been subpoena's issued against Manafort too now, but the news about it has gotten buried under the landslide against Trump over the last few days. They are going after his property deals and I'm assuming whether they were used to launder dirty money.
http://thehill.com/blogs/blog-briefi...-manafort-home
Now if they are going after him in this way what are the odds they are going after the much bigger fish and property dealer, Trump, in exactly the same way? I'd say close to 100%. But its going to be a much more closely guarded secret so we will be less likely to hear about it.