Not 100% sure what you mean…if you want the Alexa to just ‘speak up’ in response to sensors, the answer is always going to be no…Amazon has made it very clear outside of timers and alarms that this will only react to voice…no other ‘stimuli’.
If you are taking about a delay in reaction to a voice command, currently not in the version I will release soon, but it should in the “macro version”. And again…this function is already in Alexa Helper…you can trigger a ‘countdown’ from when you activate the virtual trigger to when the actions actually happen. The caveat in this is that the countdown has to be increments of minutes…ST does not like anything less than 60 seconds, and even then it could be 45 to 75 seconds.
Let me know if I misunderstood your question,