So:
will there be:
- aspectual
- modal (yes, already answered)
- polar (yes, there're negative binyanim; already answered)
- temporal (no, tenses will be shown by prefix; already answered)
- diathetic or vocal (yes, just answered)
binyanim?
Which modalities, and/or modes, and/or moods, will be among the modal binyans?
Declarative? Interrogative? Imperative? Exclamatory?
Will "exclamatory" include mirativity or validationality? (If you even have an exclamatory!) ("Intensive" might be validational or mirative; I don't know.)
Will there be special binyanim for the protasis and/or for the apodosis of a conditional? WIll either of them vary depending on whether the protasis is realis or irrealis?
How do you show epistemic modality -- what is known vs what is not known, and who knows it -- the speaker, the addressee, both, or neither?
How do you show whether someone wants or doesn't want the clause to be true, and who?
How do you show that a clause is true because someone -- e.g. the speaker or the addressee -- wants it to be true?
Do you have a prohibitive -- the opposite of an imperative?
How do you show deontic modality -- "must" and "should"?
Or are all those questions either
- already answered
- premature
- irrelevant
?
How do you indicate perfective vs imperfective, or any finer aspectual information?
How do you indicate reflexive and/or reciprocal voice? Or do you treat them as persons instead of as voices? (Looks like you have reflexive binyanim, among the "vocal" binyanim. Don't see any reciprocal anything.)
How do you show future tense? Since your binyanim don't separate present from future, either there's different morphology, or there's a lexical method such as a future auxiliary. Unless they just never talk about the future?
Will you indicate relative tense -- anterior vs posterior vs simultaneous?
Will you have past posterior or posterior past, or future anterior or anterior future?
WIll you have remote past vs recent past, or remote future vs near future, or anything like that?
Hodiernal past vs hesternal past vs pre-hesternal past?
Hodiernal future vs crastinal future vs post-crastinal future?
Will you have clause-chains like "Old Testament" Hebrew seems to have had? If so, will they have to break whenever some particular grammatical category changes -- like maybe polarity, or voice, or aspect? (ISTR Hebrew chains couldn't contain a negative clause, so whenever one came up the chain had to break.)
Maybe I'm asking too many questions. And I haven't even mentioned pluractionality! Nor applicative voice!