To add on to this, each time before a delay, pudding would talk about how she was close to release with the update. With the initial beta we got last month, looking at the source code reveals practically nothing she said was finished was actually finished. In other words, she's just been lying about making a lot of progress for 3 years while raking in patreon cash.
Also Definitive Edition is in the same engine as remixed, its only the code thats different.