Metro is about to reduce service on the Rapid 704 by terminating the eastern end of the line at Sunset/Alvarado. So you if you were heading downtown on the 704, you would have a forced transfer to the Red Line at Santa Monica/Vermont. Line 2 would be rerouted to go to Union Station instead of the 704, so you'd have to transfer to a local 2 or local 4 to get to Echo Park or further stops downtown.
Here's a thought. Line 304 used to go into the heart of downtown and it used to be packed solid during rush hour. I know this, because I used to ride it. Perhaps the change that needed to be made here was simply switching the 2 and the 704 so that the 704 went into the heart of downtown. (Unfortunately, unlike Penn Station and Grand Central Station in New York and Liverpool Street Station and Charing Cross Station in London, there isn't much "destination" ridership to/from Union Station as it is pretty much used for transfers to/from trains only.
My comment to Metro is that the should simply switch the 2 and 704 routes east of Sunset/Alvarado and try that before truncating the service.
Another bus service truncation you need to know about is Metro's proposal to terminate all northern trips of the 217 at Hollywood/Vine station. This means if you are headed to East Hollywood or Los Feliz, Metro will force you to transfer onto the Local 180/ Rapid 780.
Forced transfers are so discouraging to potential transit riders.
Here are the details of all the proposed service "enhancements". (In bureaucratic language, a service reduction is still called an "enhancement".)
If you have any comment about these proposals, please contact Metro at firstname.lastname@example.org
Please send in your comments in and be heard.