The application u/s 24 HMA get dismissed along with the RCR Petition u/s 9 HMA if you withdraw it now.
The wife can always file for divorce u/s 13 HMA even while your RCR u/s 9 HMA is going on, as a counter claim.
The criminal complaint for dowry and cruelty u/s 498A, DV Act, DP Act etc. can be filed against you by your wife even if your RCR is going on, those are different cases and your defense of RCR will not matter as those relates to previous acts that is stated by your wife have been committed by you, in RCR you seek her to resume conjugal relationship that doesn't debar her claim her allegations of cruelty, dowry demand against you.
Yes you can seek maintenance pendetilite from your wife u/s 24 HMA if you do not have income and she has the same, but your claim will require your explanation to why that was so when previously you were employed and had income much more than her.