I'm really worried about the 50th Anniversary next year. With all the delays that will or might happen, it will significantly affect their original plans. It has only been a month or two so Universal continuing construction ain't a big deal. Now if these closures lasts for up to six months, then Universal will definitely be ahead.
Ratatouille, France expansion, Tron and Guardians will most likely all open next year although Fall 2020 would still be a possibility for the Rat and France. Harmonious is unlikely to happen this year since social distancing will still be implemented.
The only thing I could think of for Universal is their new Jurassic World rollercoaster which Im sure will be built quickly since it's just a rollercoaster. Secret Life of Pets attraction is supposed to be open now. I guess Epic Universe is their big one.