Metaculus has currently got over 1000 open forecasting questions, many of which are longtermist or EA focused.
These include several EA-focused categories, e.g. EA survey 2025, an Alt-Protein Tournament, Animal Welfare, the "Ragnorak" global catastrophic risks series, and other questions on the distant future.
I am volunteering at Rethink Priorities doing forecasting research, and am looking to see if there are EA related questions with long time horizons (>5 years) people are interested in seeing predictions on, and if there are I am willing to put some time into operationalising them and submitting them to Metaculus.
I think this would be both directly useful for those who have these questions and others who find them interesting, and also useful for expanding the database of such questions we have for the purpose of improving long term forecasting.

This question is part of a project of Rethink Priorities.
It was written by Charles Dillon, a volunteer for Rethink Priorities. Thanks to Linch Zhang for advising on the question. If you like our work, please consider subscribing to our newsletter. You can see all our work to date here.
I have a doc on my computer with some notes on Metaculus questions that I want to see, but either haven't gotten around to writing up yet, or am not sure how to operationalize. Feel free to take any of them.
Giving now vs. later parameter values
Open research questions
"By 2040, there will be a broadly accepted answer on how to construct a rank ordering of possible worlds where some of the worlds have a nonzero probability of containing infinite utility."
"In 2121, it will be broadly agreed that, all things considered, donations to GiveDirectly were net positive."
"By 2040, there will be a broadly accepted answer on what prior to use for the lifespan of humanity." see https://forum.effectivealtruism.org/posts/XXLf6FmWujkxna3E6/are-we-living-at-the-most-influential-time-in-history-1
"By 3020, a macroscopic object will be observed traveling faster than the speed of light."
Finance
That's in pending now, as are a few other questions you may be interested in, though not identical to the ones you list.
I'll post a response here in a few weeks once most of the questions I intend to write are actually live with a summary.