God will make a new heaven and earth. New ways to worship.
Isaiah 66:22 “As the new heavens and the new earth that I make will endure before me,” declares the Lord, “so will your name and descendants endure. 23 From one New Moon to another and from one Sabbath to another, all mankind will come and bow down before me,” says the Lord.
Which does not say there will be a new way of worship. We are told the Sabbath is a holy convocation Lev 23:3 and we see Jesus as our example in the churches on the Sabbath day reading God's Word Luke 4:16 which continues as promised by God Exodus 31:16 forever Isaiah 66:23
John 4:21 Jesus said to her, “Woman, believe Me, the hour is coming when you will neither on this mountain, nor in Jerusalem, worship the Father. 22 You worship what you do not know; we know what we worship, for salvation is of the Jews. 23 But the hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for the Father is seeking such to worship Him. 24 God is Spirit, and those who worship Him must worship in spirit and truth.”
Yes, God wants us to worship Him in truth and spirit. The first day is not a day God blessed, sanctified or made holy. Sunday keeping is not a commandment of God, but Sabbath keeping is. Exodus 20:8-11. Spoken by our Creators own voice and written by His own Finger and stored in the Most Holy of God's Temple. Jesus tells us not to worship in vain by keepings traditions, which Sunday keeping is but Sabbath keeping is God's will for us Exodus 20:8-11. Matthew 15:3-9 Worshipping God on His chosen day over the day chose for God is allowing God to be God and is obeying His authority over mans and worshipping Him in truth and Spirit.
Colossians 2:16 Therefore do not let anyone judge you by what you eat or drink, or with regard to a religious festival, a New Moon celebration or a Sabbath day. 17 These are a shadow of the things that were to come; the reality, however, is found in Christ.
Lets go through this because this is the #1 scripture used to try to do away with a commandment of God written in stone by our Creator and Savior and where God told us to Remember which means we should not forget.
You skipped past a few important scriptures which gives us context.
Col. 2:14 Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;
This gives us a lot of clues. The handwriting of ordinances is not one of the commandments of God. This is a direct reference that can be found in the law of Moses and not one of God's Ten commandments. It says it is contrary to us. God told us His Sabbath day is holy and blessed so that is not contrary.
Did you know there are more than one Sabbath in the bible? There is the weekly Sabbath that is holy and blessed and is the holy day of the Lord thy God. Genesis 2:1-3, Exodus 20:10, Isaiah 58:13 so definitely not contrary and than there is the annual sabbath(s) feast days that was
after sin and is an
ordinance in the law of Moses and is about food and drink offerings which is in context to this scripture.
In Col 2:17 gives us another clue this is not about the seventh day Sabbath
Col 2: 17 Which are a shadow of things to come; but the body is of Christ.
The Sabbath is not a shadow and points backwards as a memorial to Creation before sin. "Remember" the Sabbath day Exodus 20:8 to Genesis 2:1-3
We see the Sabbath as a commandment after Christ died Luke 56:23. Jesus referenced it that it would be kept after He goes back to heaven Matthew 24:20 and Jesus tells us all the commandments of God are eternal Matthew 5:19
Hope this helps.
God bless