Using the present tense for future events indicates certainty, consistency, and familiarity. In other words, use this to talk about events which will happen, which happen on a regular basis (or are predictable in some way), and about which you have some personal knowledge.
The holidays start next week.
I know this happens every year, last year I saw it happen in the same way, and I am sure it will happen the same way this year.
The train leaves in five minutes
I know the train leaves at a specific time, I know that trains usually leave on time, and I have seen the schedule to confirm when the train will leave.
The gala event starts tomorrow
I have personal knowledge that it is scheduled for tomorrow, I know that events like this usually start on schedule, and I feel comfortable asserting that it will definitely happen.
If any of these three does not exist, there is uncertainty, and the future tense will be more appropriate.
We get paid on Friday
I know this happens with some consistency and regularity, as I've already received at least one paycheck on Friday.
We will get paid on Friday
Oops, now there is some doubt. I hope this will happen, but I'm not sure it'll happen.
Here's another example: given no other context, consider these two sentences:
He will make the winning shot of the game in twenty seconds.
He makes the winning shot of the game in twenty seconds.
The first indicates a future condition, but the context is unclear. Do I really know this will happen? Probably not. More likely I'm expressing an opinion, or a personal hope.
But the second sentence, that expresses an odd certainty. The context is either that we are watching a recording of the game which I have seen before, or that I'm psychic, and I've already seen this happen with my mental powers.
The time frames "currently" and "at the moment" can refer to a temporary situation, but they can also refer to a situation or action that might continue into the future.
Of the two, I would say that "at the moment" most often refers to a transient or ephemeral action/state, and yet, it most often takes present continuous.
But in some cases (with non-stative verbs) it simply cannot take simple present:
- Where are you going?
- At the moment, I go home (wrong)
- At the moment, I am going home.
"Currently", on the other hand, most often applies to actions or states that are continuing, and might continue indefinitely: :
- Who robbed the bank?
- Currently, we're looking into it.
yet it can reasonably take simple present:
- What inventory valuation method do you use?
- Currently, we use FIFO.
So, all I can say is that your prior notions about simple present vs. present progressive were much too constrained.
By the way, for what it's worth: "currently" extends a litlle into the past, whereas "at the moment" doesn't.
And, as you well know, one can say "I am going to school tomorrow." (But that's a different kettle of fish. Or maybe a horse of a different color. Or, more likely, a fish of a different color—namely, a red herring.)
Best Answer
If you hope for something, you are normally thinking about something that has not yet happened, but you would like it to happen at some time in the future. You can follow it with a future tense, as in the following example, though this sounds slightly more formal to me:
The use of hope already indicates that you are talking about something that may happen in the future, so it is perfectly acceptable to use present simple, especially in informal speech
This example uses simple past, which you use to talk about a completed action in the past. Even if you put "I hope that..." in front of it, it is still clear that you are talking about something that, if it did happen at all, happened in the past.
This is an example of using simple present tense after a time word (tomorrow) to describe something that will happen in the future. You will find more about this usage here.
You can find more ways to talk about future plans here.
Note that the word wish indicates that you are talking about an irrealis situation (one that is not likely to happen). In such cases, you must use the correct tense and then backshift it (or use the subjunctive were for the be-verb, even if there is a time-word.
Note that, in English, you normally only use a capital letter for the first word in the sentence and for proper nouns.