The lead developer is away this week, what will I do if somebody asks me for a deadline 😰

Tell them to go fuck themselves, flip the table, light your papers on fire and sing the British National anthem.

Or just take a wild guess, which is exactly what your lead Dev is doing.

Soon (C)
Soon: Copyright 2004-2016 Blizzard Entertainment, Inc. All rights reserved. "Soon" does not imply any particular date, time, decade, century, or millennia in the past, present, and certainly not the future. "Soon" shall make no contract or warranty between Blizzard Entertainment and the end user. "Soon" will arrive some day, Blizzard does guarantee that "soon" will be here before the end of time. Maybe. Do not make plans based on "soon" as Blizzard will not be liable for any misuse, use, or even casual glancing at "soon."

I will comeback with the estimates soon/later

Q: how long will it take you to build x
A: how long is a piece of string?

Sorted

Think about the implications, masturbate and get back to them afterwards. Your dev should be back then

@ChrisCooney:
"Take a wild guess..." Priceless.
My lead Dev has been gone 2 months and it's just been me since then. I took wild guesses multiple times a day.