You will almost certainly be contacted by either a representative of pretrial services or the District Attorney's office if your husband's lawyer believes there is a chance to have a personal bond approved. Give them your honest opinion on whether he will comply with conditions and whether he will pose a risk to you or your family.
He probably should go forward with the sentencing if his DWI is a misdemeanor. This is true because the new arrest is so recent, the prosecutors wouldn't know about it. If you postponed the case, they may find out and pull their offer. The new case sounds like one that could be dismissed if handled properly.
It is very frightening to be charged with a felony that carries up to 10 years in prison. So, it is understandable someone would panic in this situation. Eventually he will get caught and it can be even worse on him than if he simply turns himself in. If he does not turn himself in and is caught by law enforcement or a bounty hunter he could have additional charges brought against him which brings more jail time.
This depends on what the exact sentence was. If you were placed deferred ajudication you may qualify for a non-disclosure. If you your case was dismissed you may qualify for an expunction. However, if you served jail time as a sentence on this case you may not be able to seal the record.
This really depends on some additional factors but, generally you can get your license back by paying the surcharge fees at the Texas Department of Public Safety. You can find more information on their website at https://texasonline.state.tx.us.
There is no requirement to shaire any informaiton with most courts. It can be either a positive or negative to your situation. You will need to consult with an experienced attorney who can review all aspects of your case and help you determine how disclosure of this information will apply to your case.