Mr. Bester
Beyond the rim
Here is another possibility for what was going to happen to Sinclair.
s2:sinclair learns of his minbari soul thing
s3:he becomes aged on B4, uses the chrysalis to become a Minbari and lead them in the previous great war.
s4:he returns as Valen and becomes a messianic figure and kicks the first ones out
s5:he goes beyond the rim
This would fit in with all the pieces that we saw in s1 and it would make more sense. If we go by the idea that he goes back in s5 then why does he help the vorlons? He would have know that they were the same as the shadows.
s2:sinclair learns of his minbari soul thing
s3:he becomes aged on B4, uses the chrysalis to become a Minbari and lead them in the previous great war.
s4:he returns as Valen and becomes a messianic figure and kicks the first ones out
s5:he goes beyond the rim
This would fit in with all the pieces that we saw in s1 and it would make more sense. If we go by the idea that he goes back in s5 then why does he help the vorlons? He would have know that they were the same as the shadows.