As for the New Testament text, we have it already. It is the text used for two millennia in Byzantium.
No special codex, of any age, even if it were of the second or third and not of the fourth century, no special codex can really advance our knowledge of the New Testament.
The publication of Codex Sinaiticus may be of some interest to scholars of the philological tradition of the text, but for a person who uses the Bible in order to reflect on his faith, this publication is of no importance whatsoever.
Cf. Elpenor’s Bilingual New Testament