First, my answers to the questions:
#1 - To this date, What has religion accomplished that may not have been accomplished without it?
a. Creating divisions among those who otherwise might have been good friends and welcomed members of a geographic-based community. See, for example, the Sunni and Shiite conflicts or the Wahabbi sect and practically anyone else. See also the conflicts between Christianity and Islam through the ages, which is even more ironic since Islam was merely a schism from Judaism just as Christianity was a more recent schism from Judaism.
b. Giving folks something to argue about that is based on multiple mistaken beliefs that pander to the inherent territoriality of the human brain.
I specifically omitted "teaching someone to read." That would have occurred anyway. Religion merely changed the rate at which that occurred and the book from which those early reading lessons would have been based.
#2 - What has Religion accomplished for yourself?
Convinced me that the most religious among us have forgotten that they are basing their hateful beliefs on persons who touted the values of forgiveness and acceptance, not conformance to rigid law.
#3 - One day what do you hope Religion may achieve?
Recognition that just as life changes and evolves, just as modern philosophy evolves, so religious beliefs must evolve to keep up with modern science. The bibble was written at a time when science couldn't explain much of anything - but now it can explain a LOT. Yet the bibble stays stagnant, as do the thoughts of its most virulent adherents.
#4 - Lastly, Do you ever believe religion will become obsolete if we ever do manage to find life outside of planet earth?
Finding life outside planet Earth won't be necessary for religion to become obsolete, but then again, religion already has the answer to that one: "We must visit these heathens and educate them as to the glories of the Savior." I can see starting an interstellar version of the Crusades over religion.
Having said that, may I respectfully recommend an excellent fictional work on the topic of question #4?
James K Blish wrote a novel, A Case of Conscience, involving the discovery of an alien, atheistic race with strong morals - something that would appear to violate the Manichaean Heresy (not sure I spelled that name right) regarding how God must be the source of all morals, but the heretics claimed they didn't need the church.
In this novel, Mr. Blish told the story of a Jesuit priest who had participated in the planetary survey and verified the combination of atheism and morality, which caused him to begin to question his faith. I will avoid telling too much more of the story, but it was a well-written piece where the reader's religious beliefs (or lack of same) would allow two different views of the story depending on which side of that fence you sat... all the way to the end. In essence, everything was capable of two interpretations of why it occurred. As an amateur writer myself, I was dazzled by his skill at skating between the opposing viewpoints so effectively.
I believe Mr. Blish is either now deceased or at least is no longer writing. His works should be available in a good library or a bookstore that caters to fiction from the middle of the 20th century.